IMO- Mathematics Olympiad (SOF) Class 9: Questions 764 - 769 of 919

Question

If, then the value of x is________.

Question

In the given figure, Square represents doctors, triangle represents ladies and circle represents surgeons. Which letter represents the ladies who are both doctors and surgeons?

Question

Bhajan Singh purchased 120 reams of papers at Rs. 80 per ream. He spent Rs. 280 on transportation, paid octroi at the rate of 40 paise per ream and paid Rs. 72 to the coolie. If he wants to have a gain of , what must be the selling price per ream?

Question

A student was asked to divide a number by 6 and add 12 to the quotient. He, however, first added 12 to the number and then divided it by 6, getting 112 as the answer. The correct answer should have been________

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Question

The value of k for which is a factor of is ________.