RRB NTPC PYP 2009 - RRB NTPC Mock Test
RRB NTPC PYP 2009 - RRB NTPC Mock Test
Q 60. If the volumes of two cubes are in the ratio 27 : 64 and then the ratio of their total surface area is
27.64
0.127777778
0.386111111
0.130555556
Q 61. A and B can do a work in 18 and 24 days, respectively. They worked together for 8 days and then A left. The remaining work was finished by B in how many days?
5 days
6 days
8days
10days
Q 62. A and B can do a work in 12 days, B and C in 15 days, C and A in 20 days. If A, B and C work together, they will complete the work in
5 days
7days
10days
15 days
Q 63. If 12 men and 16 boys can do a piece of work in 5 days, 13 men and 24 boys can do it in 4 days, then the ratio of the daily work done by a man to that of a boy is
2 : 1
0.125694444
0.084722222
0.211111111
Q 64. If 50%of (x – y) = 30% of (x+y), then what per cent of x is y?
25
34
40
400
Q 65. If the sale tax be reduced from to , what difference does it make to person who purchases an article whose marked price is ₹ 8400?
₹ 20
₹ 15
₹ 14
₹ 10
Q 66. A man sold 18 cots for ₹ 16800, gaining there by the cost price of 3 cots. The cost price of a cot is
₹ 600
₹ 800
₹ 900
₹ 1000
Q 67. The selling price of 5 articles is the same as the cost price of 3 articles. The gain or loss is
20%, gain
25%, gain
33.33%, loss
40%, loss
Q 68. Dilip, Ram and Amar started a shop by investing ₹ 2700, ₹ 8100 and ₹ 7200, respectively. At the end of 1 yr, the profit was distributed. If Ram’s share was ₹ 3600, their total profit was
₹ 10800
₹ 11600
₹ 8000
None of these
Q 69. In what time will the simple interest be 2/5 of the principal at 8% per annum?
8yr
7yr
5yr
6yr
Q 70. A sum of ₹ 1600 gives a simple interest of ₹ 252 in 2 yr and 3 months. The rate of interest per annum is
5.1/2
0.08
0.07
0.06
Q 71. The difference between the simple interest and the compound interest (compounded annually) at the rate of 12% per annum on ₹ 5000 for 2 yr will be
₹ 17. 50
₹ 36
₹ 45
₹ 72
Q 72. If the compound interest on a certain sum for two consecutive years is ₹ 220 and ₹ 242, then the rate of interest per annum is
0.08
0.1
0.11
0.12
Q 73. The perimeters of two squares are 40 cm and 32 cm. The perimeter of a third square whose area is the difference of the area of two square, is
24 cm
42 cm
40 cm
20 cm
Q 74. The area of square field is 69696 m2. Its diagonal will be equal to (use√2=1.414)
313.296 m
353.296 m
373.296 m
393.296 m