Last year, the population of a town was x and if it increases at the same rate, next year it will be y. the present population of the town is

The schedule working hour of a labour in a week if 48 hours and he gets Rs. 480 for that. Over time rate is 25% more than the the basic salary rate. In a week a labour gets Rs. 605, how many hours altogether he works in that week.

• [A] 49
• [B] 52
• [C] 55
• [D] 58

A fraction in reduced form is such that when it is squared and then its numerator is increased by 25% and the denominator is reduced t0 80% it results in 5/8 of original fraction. The product of the numerator and denominator is :

• [A] 6
• [B] 12
• [C] 10
• [D] 7

A student took five papers in an examination, where the full marks were the same for each paper. His marks in these papers were in the proportion of 6:7:8:9:10. In all papers together, the candidate obtained 60% of the total marks then, the number of papers in which he got more than 50% marks is

• [A] 1
• [B] 3
• [C] 4
• [D] 5
• [E] None of these

Every month a man consumes 25 kg rice and 9 kg wheat. The price of rice is 20% of the price of wheat and thus he spends total Rs. 350 on the rice and wheat per month. If the price of wheat is increased by 20% then what is the percentage reduction of rice consumption for the same expenditure of Rs. 350? Given that the price of rice and consumption of wheat is constant :

• [A] 40%
• [B] 25%
• [C] 36%
• [D] 24%
• [E] Cannot determined

A college has raised 75% of the amount it needs for a new building by receiving an average donation of Rs. 600 from the people already solicited. The people already solicited represent 60% of the people, the college will ask for donations. If the college is to raise exactly the amount needed for the new building, what should be the average donation from the remaining people be solicited?

• [A] 300
• [B] 250
• [C] 400
• [D] 500