Directions (1-5): In the following number series one number is wrong. Find out the wrong number. ‘
1. 5 348 564 689 716 780 788
(1) 716
(2) 788
(3) 348
(4)689
(5) 780
2. 444 2224 1114 556 281.5 142.75 73.375
(1)2224
(2) 2815
(3) 1114
(4) 556
(5) 14275
3.4.5 16 25 33 38.5 42 43.5
(1) 33
(2) 385
(3) 42
(4) 435
(5) 25
4.180 181 210 333 676 1405
(1) 181
(2) 210
(3) 1369
(4) 676
(5)1405
5.38 567 998 1369 1658 1883
(1) 567
(2) 998
(3) 139
(4)1658
(5) 1883
6.What will be the approximate difference in the simple and compound interest accrued on an amount of Rs. 2,600/- @ 15 p.c.p.a. at the end of three years ?
(1) Rs.l67/-
(2) Rs. 194/-
(3) Rs. 202/-
(4) Rs. 172/-
(5) Rs. 184/-
7.A 320 metre long train crosses a platform thrice its length in 40 seconds. What is the speed of the train in km/hour?
(1) 120.6
(2) 115.2
(3) 108.4
(4) Cannot be determined
(5) None of these
Directions (8-10): Study the following information carefully to answer the question that follow.
A committee of five members is to be formed out of 4 students, 3 teachers and 2 sports coaches. In how many ways can the committee be formed if -
8.The committee should consist of 2 students, 2 teachers and 1 sports coach?
(1)256
(2)64
(3)9
(4)36
(5)None of these
9.Any five people can be selected?
(1)126
(2)45
(3)120
(4)24
(5) None of these
10.In how many different ways can the letters of the word ‘LEASE’ be arranged?
(1) 240
(2) 120
(3) 25
(4) 60
(5) None of these
Answers
1.(1) difference between the numbers 343 , 216 , 125 ,
2(4) series is 1/2 + 2 ,1/2 + 2 ,1/2 + 2 .....
3(5)
4 (2) difference between the numbers 1 , 27 , 125 ,343
5(2) difference between the numbers 529 , 441 , 361 ,289
6(5) Difference = 2600*15*15 (300 + 15)/100^3 = 184
7(2) Required Speed = (320 + 3*320)/40 = 32 m/s
8(4) 4C1 X 3C2 X 2C1 = 36
9 (1) 9C5 = 126
10 (4) 5!/2! = 601.(1) difference between the numbers 343 , 216 , 125 ,
2(4) series is 1/2 + 2 ,1/2 + 2 ,1/2 + 2 .....
3(5)
4 (2) difference between the numbers 1 , 27 , 125 ,343
5(2) difference between the numbers 529 , 441 , 361 ,289
6(5) Difference = 2600*15*15 (300 + 15)/100^3 = 184
7(2) Required Speed = (320 + 3*320)/40 = 32 m/s
8(4) 4C1 X 3C2 X 2C1 = 36
9 (1) 9C5 = 126
10 (4) 5!/2! = 60
1. 5 348 564 689 716 780 788
(1) 716
(2) 788
(3) 348
(4)689
(5) 780
2. 444 2224 1114 556 281.5 142.75 73.375
(1)2224
(2) 2815
(3) 1114
(4) 556
(5) 14275
3.4.5 16 25 33 38.5 42 43.5
(1) 33
(2) 385
(3) 42
(4) 435
(5) 25
4.180 181 210 333 676 1405
(1) 181
(2) 210
(3) 1369
(4) 676
(5)1405
5.38 567 998 1369 1658 1883
(1) 567
(2) 998
(3) 139
(4)1658
(5) 1883
6.What will be the approximate difference in the simple and compound interest accrued on an amount of Rs. 2,600/- @ 15 p.c.p.a. at the end of three years ?
(1) Rs.l67/-
(2) Rs. 194/-
(3) Rs. 202/-
(4) Rs. 172/-
(5) Rs. 184/-
7.A 320 metre long train crosses a platform thrice its length in 40 seconds. What is the speed of the train in km/hour?
(1) 120.6
(2) 115.2
(3) 108.4
(4) Cannot be determined
(5) None of these
Directions (8-10): Study the following information carefully to answer the question that follow.
A committee of five members is to be formed out of 4 students, 3 teachers and 2 sports coaches. In how many ways can the committee be formed if -
8.The committee should consist of 2 students, 2 teachers and 1 sports coach?
(1)256
(2)64
(3)9
(4)36
(5)None of these
9.Any five people can be selected?
(1)126
(2)45
(3)120
(4)24
(5) None of these
10.In how many different ways can the letters of the word ‘LEASE’ be arranged?
(1) 240
(2) 120
(3) 25
(4) 60
(5) None of these
Answers
1.(1) difference between the numbers 343 , 216 , 125 ,
2(4) series is 1/2 + 2 ,1/2 + 2 ,1/2 + 2 .....
3(5)
4 (2) difference between the numbers 1 , 27 , 125 ,343
5(2) difference between the numbers 529 , 441 , 361 ,289
6(5) Difference = 2600*15*15 (300 + 15)/100^3 = 184
7(2) Required Speed = (320 + 3*320)/40 = 32 m/s
8(4) 4C1 X 3C2 X 2C1 = 36
9 (1) 9C5 = 126
10 (4) 5!/2! = 601.(1) difference between the numbers 343 , 216 , 125 ,
2(4) series is 1/2 + 2 ,1/2 + 2 ,1/2 + 2 .....
3(5)
4 (2) difference between the numbers 1 , 27 , 125 ,343
5(2) difference between the numbers 529 , 441 , 361 ,289
6(5) Difference = 2600*15*15 (300 + 15)/100^3 = 184
7(2) Required Speed = (320 + 3*320)/40 = 32 m/s
8(4) 4C1 X 3C2 X 2C1 = 36
9 (1) 9C5 = 126
10 (4) 5!/2! = 60
