Question
Ten numbers are arranged in decreasing order. The
average of the first nine numbers is 55, and the average of the last nine numbers is 50. What is the difference between the first and the last number?Solution
If a sum of money is to be divided among A, B, C such that A’s share is equal to twice B’s share and B’s share is 8 times C’s share then their s...
A and B started a business by investing Rs.300 and Rs.400 respectively. After 6 months, A increased his investment by Rs.800. Find the ratio of annual p...
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P and Q invested Rs.20000 and Rs.15000. After 6 months R joined with Rs.18000. Three months later P withdrew Rs.4000 and Q withdrew Rs.2000. Total yearl...
A, B and C enter into a partnership, A invest 3X + 1000, B invest X + 3000 and C invest X + 1500 for one year if B share is 20000 from total profit of 4...
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"P" and "Q" invested Rs. 4000 and Rs. 2500, respectively, to launch their businesses. 4 months later, "P" took out Rs. 1500 from his original investment...
A and B entered into a business investing Rs. (x + 60) and Rs. (x – 55) respectively. After one year they invested Rs. 120 more and Rs. 150 more respe...
A and B started a retail store with initial investments in the ratio 8:9 and their annual profits were in the ratio 2:3. If A invested the money for 6 m...
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