Quant Questions based on SBI Clerk Prelims 2018: 23 June
Directions (Q. 1-5): In each of these questions, two equations (I) and (II) are given. You have to solve both the equations and give answer
1) if x > y
2) if x ≥ y
3) if x < y
4) if x ≤ y
5) if x = y or no relation can be established between x and y.
1. I. 3x2 – 29x + 56 = 0
II. 3y2 – 5y – 8 = 0
2. I. 5x2 + 26x – 24 = 0
II. 5y2 – 34y + 24 = 0
3. I. x2 – 7x = 0
II. 2y2 + 5y + 3 = 0
4. I. 7x – 4y = 40
II. 8x + 8y = 8
5. I. 15x2 – 41x + 14 = 0
II. 2y2 – 13y + 20 = 0
Directions (Q. 6-10): In each of these questions a number series is given. In each series only one number is wrong. Find out the wrong number.
6. 1716 1320 1000 720 504 336 210
1) 720
2) 504
3) 1000
4) 210
5) 336
7. 1217 1083 957 833 720 618 524
1) 720
2) 833
3) 618
4) 524
5) 957
8. 16 47 199 771 2283 4585 4581
1) 4581
2) 199
3) 4585
4) 2283
5) 771
9. 2769 2213 1737 1335 1000 810 576
1) 810
2) 1335
3) 2213
4) 576
5) 1000
10. 165 286 363 396 385 350 231
1) 350
2) 363
3) 396
4) 231
5) 286
Answers:
- 2
- 4
- 1
- 1
- 3
- 3; The series is (123 – 12), (113 – 11), (103 – 10), (93 – 9), (83 – 8), (73 – 7), (63 – 6), … There should be 990 in place of 1000.
- 2; The series is 352 – (3 + 5), 332 – (3 + 3), 312 – (3 + 1), 292 – (2 + 9), 272 – (2 + 7), 252 – (2 + 5), 232 – (2 + 3) … There should be 830 in place of 833.
- 4; The series is 16 × 6 – 72, 47 × 5 – 62, 199 × 4 – 52, 771 × 3 – 42, 2297 × 2 – 32, 4585 × 1 – 22………….There should be 2297 in place of 2283.
- 5; The series is 143 + (1 + 4)2, 133 + (1 + 3)2, 123 + (1 + 2)2, 113 + (1 + 1)2, 103 + (1 + 0)2, 93 + (9 + 0)2, 83 + 82 ………There should be 1001 in place of 10001.
- 1; The series is 15 × 11, 13 × 22, 11 × 33, 9 × 44, 7 × 55, 5 × 66, 3 × 77…………There should be 330 in place of 350.