Sl. No.
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Questions/Problems
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1.
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Express as vulgar fractions:
0.75
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2.
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Express as vulgar fractions: .0056
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3.
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Express as vulgar fractions: 0.37
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4.
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Express as vulgar fractions:
3.1234567
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5.
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If 1/3.718=.2689 then find the
value of 1/.0003718
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6.
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What value will replace the
question mark in the following eq.?
(1) 1234.56 + 2345.67 + ? = 3456.78 |
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7.
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Average the fractions 5/8, 7/12,
13/16, 16/29 and ¾ is ascending
order of magnitude |
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8.
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Find the Product 5.50 x 1.5=?
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9
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Evaluate: 2.5 ÷0.0005=?
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10
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X ÷.025=80
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11
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337.63 + 8.590 + 34.4 = ?
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12
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892.50 -579.00-95.005=?
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13
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X + 543 +5.43 = 603.26 FIND X
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14
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3.14 x 106 =?
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15
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6523 x 10-5 =?
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16
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3 x 0.3 x 0.03 x 0.003 x 30 = ?
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17
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10x1.6 -2 x 1.4/2.8 =
?
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18
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0.2 x 0.2 + 0.2 x 0.02 / 0.044 = ?
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19
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(35.123)2 – (25.123)2
= ?
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20
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(10.05)2 – (5.05)2
/ 10.05 + 5.05.=?
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21
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4.2 x 4.2 – 1.9 x 1.9 / 2.3 x 6.1
=?
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22
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(0.4)4 – (0.3)4
/ (0.4)2 – (0.3)2 = ?
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23
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(7.5 x 7.5 + 37.5 + 2.5 x 2.5 = ?
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24
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The value of ¼+ 1/4x3 +
1/4x5x6
correct to 4 decimal places is
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25
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The sum of the first 20 terms of
the series 1/5x6 + 1/6x7 + 1/7x8 +..…is
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26
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(0.2 x 0.2 + 0.01) (0.1x0.1 +
0.02)-1
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27
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5x1.6 -2x 1.4 /1.3 = ?
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28
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Solution (3+ 31/2)
(3- 31/2)
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29
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Solution (3+ 31/2) +
(3- 31/2)
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30
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10/251/2 =
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31
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51/2 +2=
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32
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Subtract 5 root 3 + 7 root 5
rom 3 root 5 – 7 root 3 =?
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33
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641/6 + 161/2
+6251/4 = ?
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34
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(81)1/4 – 8 (343)1/3
+15(32)1/5+(225)1/2 = ?
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35
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2 ½ = 1.414, 31/2
=1.732,51/2=2.236
Find the value of 101/2-
151/2/ 221/2
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36
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Simplify 2 2/3.2 1/3
= ?
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37
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Simplify {(5) 1/7}4
= ?
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38
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Simplify 3 1/5 / 3 1/3
= ?
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Om Sri ram
Answers of above problems
Sol.1. 0.75= 75/100 = ¾
2. .0056 = 56/10000 =
7/1250
3. 0.37
4
3.1234567= 3
5. 1/3.718= 1/.0003718 =10,000 x
1/3.718=
10000x .2689=2689
6. 1234.56 + 2345.67 + x = 3456.78
X= 3456.78 –(1234.56+2345.67)
= 3456.78-3580.23=-123.45
7. 5/8, 7/12, 13/16, 16/29 and ¾
0.0.625,< 0.5833,<0.8125,< 0.5517,<0.75
Now ascending order : 0.5517<
0.5833 <
0.0.625, <0.75 <0.8125,
Ans. 16/29<7/12<5/8<3/4<13/16
8. 5.55 x 1.5=8.325(Sum of decimal places (2+1=3)
9. 2.5 ÷0.0005=? 25/10 ÷ 5/10000 =25/10 x
10000/5 = 25000/5=5000
10. X ÷.025=80 x x 1000/25= 80, x= 80 x 25/1000=2
11. 337.63 + 8.590 + 34.4 = 337.63
8.59
34.40
-----------
80.62
12. 892.50 -579.00-95.005= 892.50 – (579.00+95.005) = 892.500 – 674.005=218.495
13. Let X + 543 +5.43=603.26 x= 603.26 –(543+5.43)
603.26-548.43=54.83
14. 3.14 x 106 = 314/100 x
1000000 = 3140000
15. 6523 x 10-5 = 6523 x 1/100000 = .06523
16.
3 x 0.3 x 0.03 x 0.003 x 30 = 3 x 3/10 x 3/100 x
3/1000 x 30 =3x3x3x3x30/105 = 2430/1000000
0.00243
17. 10x1.6 -2 x 1.4/2.8 = 10 x 16/10 – 2
x 14/10 / 28/10 == 16- 2x14/28 == 16-2x1/2
= 15
18. 0.2 x 0.2 + 0.2 x 0.02 / 0.044 =
0.2(0.2+0.02)/0.044 = (0.2 x 0.022)/ 0.044
0.044/0.044 = 1
19. (35.123)2 – (25.123)2
= a2-b2=(a+b)(a-b)
(35.123 + 25.123)
(35.123 - 25.123)
60.246 x 10 = 60246/1000 x 10 =
602.46
20. (10.05)2 – (5.05)2 /
10.05 + 5.05.=
(10.05 + 5.05).(10.05 - 5.05)./ 10.05
+ 5.05.
5
21. 4.2 x 4.2 – 1.9 x 1.9 / 2.3 x 6.1 =
(4.2)2 – (1.9)2 / 2.3 x 6.1 == 6.1 x 2.3/ 6.1 x
2.3
Ans. 1
22. (0.4)4 – (0.3)4 / (0.4)2 – (0.3)2 = {(0.4)2}2 –
{(0.3)2}2 / (0.4)2 – (0.3)2
(0.4)2 + (0.3)2 (0.4)2 – (0.3)2
/ (0.4)2 – (0.3)2
0.16 + 0.09 = 0.25
23. (7.5 x 7.5 + 37.5 + 2.5 x 2.5 = a2+2ab+b2=(a+b)2
(7.5 + 2.5)2 = 100
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