Question
A man bought a watch and sold it at a gain of 40%. If he
had sold it for a gain of only 25%, his profit would have been Rs.225 less. What was the cost price of the watch?Solution
ATQ, Let the cost price be Rs.x. x * 140/100 – x * 125/100 = 225 7x/5 – 5x/4 = 225 28x – 25x = 225 * 20 3x = 4500 x = 1500 The cost price of the watch = x = Rs.1500
5 14 56 220 1125 6786
...98    219    75    244    ?    273
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...7    7       14    42   ?     840
...200, 50, ‘?’, 46.875, 82.03125
620 632 608 644 596 ?
...120     119     ?     352      2464     2455
...In the question, three series I, II and III are given. Find the value of x, y and z to establish the correct relation among them and choose the correct...
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...12 Â Â Â 11 Â Â Â Â 21 Â Â Â Â 62 Â Â Â Â ? Â Â Â Â Â 1234
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