If 40% of a number is equal to two – third of another number, what is the ratio of first number to the second number ?
2 : 5
3 : 7
5 : 3
7 : 3
729 ml of a mixture contains milk and water in the ratio 7 : 2. How much more water is to be added to get a new mixture containing milk and water in the ratio 7 : 3 ?
600 ml
710 ml
520 ml
None of these
Salaries of Ravi and Sumit are in the ratio 2 : 3. If the salary of each is increased by Rs. 4000 the new ratio becomes 40 : 57. What is Sumit’s salary ?
Rs. 17,000
Rs. 20,000
Rs. 25,000
Rs. 38,000
Divide 45 sweets between Panchu and Paru in the ratio 2 : 3. Then how many sweets will each of them get ?
18, 27
16, 27
14, 31
15, 30
A and B together have Rs. 1210. If 4/15 of A’s amount is equal to 2/5 of B’s amount, How much amount does B have ?
Rs. 460
Rs.484
Rs. 550
Rs. 664
The simplest form of 25 : 40 is
8 : 5
6 : 5
5 : 8
5 : 6
A, B and C contract a work for Rs. 550. Together A and B are to do 7/11 of the work. The share of C should be :
Rs. 400
Rs.300
Rs.200
Rs. 183 1/3
Find three numbers in the ratio of 2 : 3 : 5 such that the sum of their squares is 608.
18, 2, 20
2, 4, 76
8, 12, 20
4, 2, 72
Gold is 19 times as heavy as water and copper 9 times as heavy as water. The ratio in which these two metals be mixed so that the mixture is 15 times as heavy as water, is
1 : 2
2 : 3
3 : 2
19 : 135
A man earns Rs.22000 per month and spends Rs.18000. Then the ratio of his expenditure to income is
11 : 9
9 : 11
7 : 11
11 : 7
