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We are providing the most important Simplification/Approximation Questions for SBI PO 2019, SBI Clerk 2019 and all other competitive bank and insurance exams. These questions have very high chances to be asked in SBI PO 2019, SBI Clerk 2019.
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Directions:(1-2) What approximate value will come in place of question mark (?) in the following questions? (You are not expected to calculate the exact value.)
1. 35.98 x 40.01 – 49.04 x 11.03 + 17.98 x 11.96 = ?
2. √5627 x √1224 ÷ √679 = ? ÷ 13
Directions:(3-10) What value should come in place of the questions mark (?) in the following questions?
3. (0.7)2 ÷ (0.343) = (0.7)? ÷ (0.49)3
4. 1575 ÷ 21 ÷ 5 = 6 x √(?)
5. 45% of 36 + ?% of 65 = 52.6
6. (35)2 ÷ ∛125 + (25)2 + (5)3 =?
7. 12.5 x 18 + 22.5 x 6 – 3.6 x 30 = ?
8. 3960 ÷ 36 + 3600 ÷ ? = 5600 ÷ 35
9. 10(5/6) x 9(1/2) = 1003/6 x 10a/6 x 97+b
10. 11 x 16 + 19 x 13 = ? + 12 x 14
Check your Answers below:
Directions:(1-2) What approximate value will come in place of question mark (?) in the following questions? (You are not expected to calculate the exact value.)
1. Question
35.98 x 40.01 – 49.04 x 11.03 + 17.98 x 11.96 = ?
? ≈ 36 x 40 – 49 x 11 + 18 x 12
= 1440 – 539 + 216 = 1117
2. Question
√5627 x √1224 ÷ √679 = ? ÷ 13
? ÷ 13 ≈ 75 x 35 ÷ 26
? = 75 x 35/26 x 13
= 75 x 17.5 = 1312.5 ≈ 1310
Directions:(3-10) What value should come in place of the questions mark (?) in the following questions?
3. Question
(0.7)2 ÷ (0.343) = (0.7)? ÷ (0.49)3
(0.7)? = (0.7)2 ÷ (0.343) x (0.49)3
= (0.7)2 ÷ (0.7)3 x (0.7)6
= (0.7)2-3+6 = (0.7)5
=> ? = 5
4. Question
1575 ÷ 21 ÷ 5 = 6 x √(?)
6 x √(?) = 1575 ÷ 21 ÷ 5 = (1575/21) ÷ 5 = 75/5 = 15
√? x 6 = 15
=> √? = 2.5
=> ? = 6.25
5. Question
45% of 36 + ?% of 65 = 52.6
?% of 65 = 52.6 – 0.45×36
= 52.6 – 16.2 = 36.4
=> ? = 100 x 36.4/65 = 56
6. Question
(35)2 ÷ ∛125 + (25)2 + (5)3 =?
? = 1225/5 + 625 + 125
= 245 + 750 = 995
7. Question
12.5 x 18 + 22.5 x 6 – 3.6 x 30 = ?
? = 225 + 135 – 108 = 252
8. Question
3960 ÷ 36 + 3600 ÷ ? = 5600 ÷ 35
110 + 3600 ÷ ? = 160
=> 3600 ÷ ? = 160 – 110 = 50
=> ? = 3600 ÷ 50 = 72
9. Question
10(5/6) x 9(1/2) = 1003/6 x 10a/6 x 97+b
Equating the powers of 10, 9 we have:10(5/6) = 102 x 3/6 x 10a/6
10(5/6) = 106/6 x 10a/6
So, 5/6 = 6/6 + a/6
a = 6 x (5/6 – 6/6)
a = -1
9(1/2) = 97+b
b = 1/2 – 7
b = -13/2
10. Question
11 x 16 + 19 x 13 = ? + 12 x 14
176 + 247 = ? + 168
=> ? = 176 + 247 – 168 = 255
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