431.
Pradeep sells two fans at ₹480 each and by doing so he gains 20% on one fan and loses 20% on the other. His loss on the
whole (in ₹) is:
(A)
30
(B)
10
(C)
20
(D)
40
432.
The perimeter of a square whose area is the same as the area of a semi-circle of radius 2√2 cm is:
(A)
(B)
(C)
(D)
433.
X and Y are two points on the circumference of a circle having diameter 20 cm. The length of the line segment XY is 16 cm.
Find the distance (in cm) of the line segment XY from the centre of the circle.
(A)
6
(B)
3
(C)
5
(D)
4
434.
The length of a common external tangent to two circles of an equal radius of 5 units is equal to the diameter of the circle.
Which of the following can be the distance between the centres of the circles in units?
(A)
10
(B)
12
(C)
9
(D)
8
435.
A two-digit number is 12 more than five times the sum of its digits. The number formed by reversing the digits is 9 less than
the original number. The number is:
(A)
96
(B)
78
(C)
69
(D)
87
436.
The ratio of the speeds of a boat while going upstream and going downstream is 2 : 3 and the sum of these two speeds is 15
km/h. What is the speed of the stream?
(A)
3.5 km/h
(B)
1.5 km/h
(C)
3 km/h
(D)
2.5 km/h
437.
A’s income is equal to 125% of the income of B, while B’s savings are 120% of the savings of A. If the expenditure of B is
75% of the expenditure of A, then how much are B’s savings as a percentage of her expenditure?
(A)
(B)
(C)
(D)
438.
Two numbers are in the ratio 2:3. Their sum is 135. Find the numbers.
(A)
50,85
(B)
60, 75
(C)
54, 81
(D)
45,90
439.
Rohan takes 10 hours to mow a large lawn. He and Mohan together can mow it in 4 hours. How long will Mohan take to mow
the lawn if he works alone?
(A)
(B)
(C)
(D)
440.
What will be the amount due on ₹12,000 in 2 years when the rate of simple interest on successive years is 9% and 10%,
respectively?
