Some Model Questions
Directions (Q.No.1-20): What should come in place of question mark (?) in the following questions?
Ans: 2
Exp:
2. 750 ÷ 375 × (25)2 = ?
Ans: 1250
Exp:
3. (25)3 ÷ 625 × 55 = (5)?
Ans: 7
Exp:
4. 8476 - 2334 + 3297 = ? + 6447
Ans: 2992
Exp:
? = 8476 - 2334 + 3297 - 6447 = 2992
5. 23 × 15 ÷ 25 - ? + 48.2 = -35
Ans: 97
Exp:
6. ?% of 450 - 118 = 8
Ans: 28
Exp:
7. (64)2 × 82 = (?)2
Ans: 2
Exp:
Ans: 892
Exp:
9. (6 × 15) - (8 × 6) -18 = ? ÷ 3
1) 24 2) 64 3) 12 4) 36 5) None
Ans: 5 (None)
Exp:
(6 × 15) - (8 × 6) - 18 = ? ÷ 3
⇒ 90 - 48 - 18 = ? ÷ 3
⇒ ? = 72
10. 1587 + 2277 = ? ÷ 69
Ans: 56
Exp:
Ans: 2
Exp:
Ans: 4
Exp:
13. 483 ÷ 23 ÷ 3 = ?
Ans: 7
Exp:
1) 12 2) 144 3) 64 4) 24 5) None
Ans: 5 (None)
Exp:
Ans: 187.5
Exp:
16. (15 × 35.2 × 4) ÷ 12 = (?)2 - 20
Ans: 14
Exp:
17. 1710.5 × 175.1 ÷ 171.2 = 17?
Ans: 14.4
Exp:
1710.5 × 175.1 ÷ 171.2 = 17?
⇒ 1710.5 + 5.1 - 1.2 = 17?
⇒ ? = 10.5 + 5.1 - 1.2 = 14.4
18. 14.2 × 8.5 × 12.4 = ?
Ans: 1496.68
Ans: 2401
Exp:
1) 30 2) 90 3) 225 4) 120 5) None of these
Ans: 5 (None of these)
Exp: