If a flat costs Rs.4500 per sq. ft, and a commercial space costs Rs.9500 per sq. ft, then what is the ratio of their areas if the total cost of both are the same?
A. 9:19
B. 19:9
C. 15:28
D. 28:15
Basic Arithmetic
The number of seats available for Biology and Computer Science in a school is in the ratio 5:8. They are to be increased by 30% and 25% . Find the new ratio.
A. 6:10
B. 13:20
C. 3:4
D. 35:33
The sum of cubes of two numbers is 280. If the numbers are in the ratio 2:3, find the smallest number.
A. 4
B. 6
C. 3
D. 2
4 singers, 5 dancers and 3 comperes divide an amount of Rs.130000 among themselves such that 3 comperes get as much as 2 dancers and 3 dancers get as much as 2 singers. Find the amount received by a singer.
A. Rs.18000
B. Rs.13000
C. Rs.15000
D. Rs.10000
If 40% of a number is equal to two-third of another number, what is the ratio of first number to the second number ?
A. 2 : 5
B. 3 : 7
C. 5 : 3
D. 7 : 3
Find the fourth proportion to 3, 7 and 9.
A. 63
B. 31
C. 21
D. 27
A:B=2:3, B:C=3:4, A:D=4:5. Find C:D.
A. 2:5
B. 4:5
C. 6:5
D. 8:5
Two numbers are in the ratio 3 : 5. If 9 is subtracted from each, the new numbers are in the ratio 12 : 23. The smaller number is :________?
A. 27
B. 33
C. 49
D. 55
In a bag, there are coins of 25 p, 10 p and 5 p in the ratio of 1 : 2 : 3. If there is Rs. 30 in all, how many 5 p coins are there?
A. 50
B. 100
C. 150
D. 200
Seats for Mathematics, Physics and Biology in a school are in the ratio 5 : 7 : 8. There is a proposal to increase these seats by 40%, 50% and 75% respectively. What will be the ratio of increased seats ?
A. 2 : 3 : 4
B. 6 : 7 : 8
C. 6 : 8 : 9
D. None of these