Answer Posted / bidisha pandit

People who do not know both=1- People who know atleast 1.
1-(3/5+1/4-1/5)
=1-(13/20)
=7/20

One guy (some name) has Rs. 100/- in hand. He has to buy 100 balls. One football costs Rs. 15/, One Cricket ball costs Re. 1/- and one table tennis ball costs Rs. 0.25 He spend the whole Rs. 100/- to buy the balls. How many of each balls he bought?

2166

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Difference between the perimeters of two concentric circles is 66. Find the difference between radius.

1351

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X and Y are partners in a business. X invests 300 for 12 months and Y invested 600 for 6 months. If they gain a profit of 700 at the end of one year, what is X's share?

1914

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f(X)= 2X-1 + f(X-1) if X is not equal to zero and if f(X=0)=0, If f(X)=4f(X-1) then the value of X=?

1225

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Next number in the series 1, 1/2, 1/4, 1/8 ?

1093

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CALIBRATION PROCEDURE FOR HPLC

2457

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Two persons start walking from the same place in opposite directions. After walking for 4 mts, both of them take the left and walk for another 3 mts. Then what is the distance b/w them?

1198

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I need Matrix and Series questions with solutions.

2329

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A man collects cigarette stubs and makes one full cigarette with every 8 stubs.If he gets 64 stubs how many full cigarettes can he smoke.

1864

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A person went to shop and asked for change for 1.15 paise. But he said that he could not only give change for one rupee but also for 50p, 25p, 10p and 5p. What were the coins he had ?

1354

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3 angles or 3 sides r given. Which will form a triangle?

1167

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If POINT + ZERO = ENERGY, then E + N + E + R + G + Y = ?

3580

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Explain the Binomial theorem?

1081

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There are 1, 40, 00, 000 pencils of lengths ranging from 3 to 6 inches and are put up straight. The average length of 80% of pencils is 5 inches. Calculate the total length spanned by the pencils.

1803

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If A/B = 3/5,then 15A = ?

1206

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