4822.
An amount becomes double in 7 years on simple interest. The amount would be four times in ______ years on the same rate
of simple interest.
(A)
14
(B)
28
(C)
21
(D)
18
4823.
P pays Q a sum of ₹150 using coins of ₹2, ₹5 and ₹10. He uses a total of 50 coins. If the ratio of ₹2 and ₹5 coins used is 5 : 2,
then how many coins of ₹10 are used in the payment?
(A)
1
(B)
4
(C)
5
(D)
2
4824.
(A)
(B)
(C)
(D)
4825.
(A)
(B)
(C)
(D)
4826.
If the selling price of 100 pens is equal to the cost price of 140 pens, find the profit percentage.
(A)
30%
(B)
45%
(C)
40%
(D)
36%
4827.
(A)
(B)
(C)
(D)
4828.
If 1234567y is divisible by 11, then what is the value of y?
(A)
3
(B)
1
(C)
4
(D)
2
4829.
CD is a tangent to a circle of circumference of 88 cm with its centre at O. OC cuts the circle at P while OD cuts circle at V
such that ∠COD = 90°. Length of PC is 6 cm. What is half of CD (in cm) if OD exceeds OC by 1 cm?
(A)
15.5
(B)
14.5
(C)
31
(D)
16.5
4830.
A man can row 18 km/h in still water. It takes him two times as long to row up as to row down the river. Find the rate of the
stream.
