Directions (Q. 1-5): What should come in place of question mark (?) in the following questions?
1. 945.341 – 1042.792 + 875.435 + 31.025 = ?
1) 408.004 2) 809.009 3) 905.009
4) 712.009 5) 817.004
2. 23% of 1045 + 47% of 923 – 21% of 953 = ?
1) 465.03 2) 456.03 3) 446.03
4) 474.03 5) 487.03
3. (7425 ÷ 45 ÷ 5) + (8585 ÷ 85 ÷ 5) = ?
1) 56.2 2) 63.2 3) 53.2
4) 76.2 5) 65.2
4. 47 × ? = (2931 ÷ 3) + 10
1) 19 2) 20 3) 23
4) 22 5) 21
5. 8.7 × (105 ÷ 2.5) + 23 – 27 = ?
1) 361.4 2) 372.5 3) 388.4
4) 356.5 5) 344.4
Directions (Q. 91-95): What approximate value should come in place of question mark (?) in the following questions? (Note: You are not expected to calculate the exact value.)
6. 37.0231 × 45.4501 – 142.732 + 4.5179 = ?
1) 1475 2) 1757 3) 1680 4) 1545 5) 1320
7. 250430.971 + 152730.282 – 98170.195 – 32.70 = ?
1) 312188 2) 304958 3) 311715
4) 325432 5) 328917
8. (171.2)^2 – (89.5)^2 = ?
1) 26433 2) 23877 3) 21299
4) 25122 5) 24155
9. 222123.5378 × 34.21 – 22.015 = ?
1) 7606123 2) 7809465 3) 7552194
4) 7917756 5) 7154189
10. 9880 ÷ 304 × 3325 ÷ 125 = ?
1) 812 2) 915 3) 865 4) 925 5) 975
Answer :-
2. 4; ? = 23% of 1045 + 47% of 923 – 21% of 953
= 1045 * 23 ÷ 100 + 923 * 47 ÷ 100 - 953 * 21 ÷ 100
= 240.35 + 433.81 – 200.13 = 474.03
3. 3; ? = 7425÷45*5 + 8585÷85*5
= 33 + 20.2 = 53.2
4. 5; 47 × ? = (2931 ÷ 3) + 10
? =2931 ÷3*27 + 10 ÷ 47
5. 1; ? = 8.7 × (105 ÷ 2.5) + 23 – 27
= 8.7 × 42 + 23 – 27 = 365.4 – 4
= 361.4
6. 4; ? = 37.0231 × 45.4501 – 142.732 + 4.5
= 1683.5 – 142.7 + 4.5
= 1545.3
=1545
7. 2 ; ? = 250430.971 + 152730.282 – 98170.195 – 32.70
= 250431 + 152730.3 – 98170.2 – 32.7
= 304958.4
= 304958
8. 3; ? = (171.2)^2 – (89.5)^2
= (171.2 + 89.5) (171.2 – 89.5)
= 260.7 × 81.7
= 21299.19
= 21299
9. 3; ? = 2222124 × 34 – 22
= 7552216 – 22
= 7552194
10. 3; ? = 9880 ÷ 304 × 3325 ÷ 125
= (32.5) × 26.6
= 864.5
= 865
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