A. 20 days
B. 30 days
C. 35 days
D. 50 days
A. Rs.1185
B. Rs.1285
C. Rs.1385
D. Rs.1485
22/7 * 14 * 3/2 * 3/2 = 99 m2
99 * 15 = 1485
A. 90 min
B. 100 min
C. 110 min
D. 120 min
Explanation:
Work done by the third pipe in 1 min = 1/50 – (1/60 + 1/75) = – 1/100.
[-ve sign means emptying]
The third pipe alone can empty the cistern in 100 min.
A. 51:52
B. 52:53
C. 51:53
D. 52:55
Explanation:
Let C.P. of the article be Rs. x.
Then, required ratio = 104% of x / 106% of x
= 104/106 = 52/53 = 52:53
A. 5
B. 8
C. 10
D. 15
Explanation:
Let S.P. of 12 toffees be Rs. x.
Then, 80:1 = 120:x or x = 120/180 = 3/2
For Rs. 3/2, toffees sold = 12.
For Re. 1, toffees sold = 12 * 2/3 = 8
A. 40
B. 60
C. 240
D. 250
Explanation:
Let S.P = Rs. 100
Then, C.P = Rs. 40
Required Percent = (100/40 × 100) % = 250 %
A. 18
B. 13
C. 15
D. 20
Explanation:
(60/100) * 50 – (40/100) * 30
30 – 12 = 18