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What would be the simple interest obtained on an amount of Rs 9535 at the rate of 12% p.a. after 4 years?

What should be added to \(\left( \dfrac{2}{9} + \dfrac{6}{7} \right) \text{ to get } \left( -\dfrac{8}{63} \right) \)

If the ratio of boys and girls in a school is 5:4. If 25% of the boys and 20% of the girls come to school by bus. Then what percent of students do not come to school by bus?

The ratio of income of A and B is 5:6, C:B is 3:4, and C:D is 2:5. If we subtract the difference of D and B's income from the sum of A and C's income, it equals 680 rupees. Find the sum of the income of A, B, C, and D?

If 200 laddus are distributed in the Republic Day celebration in such a way that each gets 5% of the laddus. How many persons were present in the celebration?

A certain sum amounts to Rs.9075 at 6 % p.a. in 3 (1/2) years at simple interest. What will be the simple interest on the same sum at 10% p.a. in 6 years?

A sum of money doubles itself in 5 years using simple interest. It will amount to eight times itself in how many years?

Vasavi, the rice trader mixes 2 varieties of rice. The cost price of the first variety of rice is twice the cost price of the second variety. If Vasavi sells the mixture at the cost price of the costlier variety and makes a profit of 35%, then what is the ratio in which the varieties of rice are mixed?

A trader sold an article at a gain of 12%. If the selling price is decreased by Rs. 110, there would be a loss of 10%. Find the cost of the price of the article.

\(\text{The value of } \left( \dfrac{\sin A}{1 - \cos A} + \dfrac{1 - \cos A}{\sin A} \right) \div \left( \dfrac{\cot^2 A}{1 + cosec A} + 1 \right) \text{ is?} \)