Mathematics
A shopkeeper buys x books for ₹ 720.
(i) Write the cost of 1 book in terms of x.
(ii) If the cost per book be ₹ 5 less, the number of books that could be bought for ₹ 720 would be 2 more.
Write down the equation in x and solve it to find x.
Related Questions
A man buys an article for ₹ x and sells it for ₹ 56 at a gain of x%. Find the value of x.
(i) ₹ 6,400 were divided equally among x persons. Had this money been divided equally among (x + 14) persons, each would have got ₹ 28 less. Find the value of x.
(ii) ₹ 7,500 were divided equally among a certain number of children. Had there been 20 less children, each would have received ₹ 100 more. Find the original number of children.
A fruit-seller bought x apples for ₹ 1,200.
(i) Write the cost price of each apple in terms of x.
(ii) If 10 of the apples were rotten and he sold each of the rest at ₹ 3 more than the cost price of each, write the selling price of (x − 10) apples.
(iii) If he made a profit of ₹ 60 in this transaction, form an equation in x and solve it to evaluate x.
Some students planned a picnic. The budget for the food was ₹ 2,400. As 8 of them failed to join the party, the cost of the food for each member increased by ₹ 50. Find how many students went to the picnic.