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Since the new average increases by 0.35 years, the difference in the sum of ages of the students who left and the new students should be: 70×0.35=24.5 years Option I: (38+19+29)−(15+21+27)=23 years So, option I cannot be the answer. Option II: (44+19+29)−(15+21+33)=23 years So, option II cannot be the answer. Option III: (30+19+29)−(15+21+20)=22 years So, option III cannot be the answer.
Gagan and Magan have their monthly incomes in the ratio of 9:7 while their monthly expenditures are in the ratio of 6:5, if they have saved Rs. 23,400 a...
The ratio between the length and breadth of a rectangular board is 7:5. If the breadth of the board is 20.5cm, find the length in cm.
A sum of money is divided between Neha and Anjali in a 7:9 ratio. If the total amount distributed had been increased by 15%, Neha’s share would have b...
If the base radius of 2 cylinders are in the ratio 3 : 4 and their heights are in the ratio 4 : 9, then the ratio of their volumes is:
The respective ratio of incomes of A, B and C is (2x-1): (x+1): 3x. If A gets ₹2400 less than C, then what is the income of B?
A recipe calls for flour, sugar, and butter in the ratio 4:2:1. If you have 600 grams of flour and decide to use only 40% of it, how much sugar and butt...
Ratio of runs scored by A, B and C is 3:10:8, respectively. Total number of runs scored by the team is 480, which is four times the runs scored by B. Fi...
The ratio between two numbers is 7:8. If each number is increased by 9, the ratio between then become 10:11, find the difference between numbers.