Answer Posted / pratik patni

215.
Logic= 3^3-1=27-1=26
4^3-1=16-1=15
5^3-1=125-1=124
Similarly,
6^3-1=215

In a class total 34 students, 16 are have a brother, 15 are have sisters, 9 students don't have either brothers or sisters.Find the number of students having both brother and sisters.

1111

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13_46_8_180_210_75 = 64 . Use + and – in the empty places to make the equation holds good. Take m = number of + and n = number of – . Find m – n?

774

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If the letters of the word "rachit" are arranged in all possible ways and these words are written out as in a dictionary, what is the rank of the word "rachit".

783

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5 women given some of their heights(tall,medium,short)Hair( long, plainted),stards(Black or Brown), sari,2 medium,2-short.Tall-no sari.Plainted-medium.Answer the combinations.

945

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How would you measure 4 liters using jugs of 3l and 5l? Give a few solutions to this problem?

857

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If the ratio of the areas of 2 queres is 2:1, then the ratio of the perimeters of the squares is

724

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Find the next series number : 21, 463, 687, 238, 1134, ----

646

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if length of a rectangle is increased by 20% and width is decreased by 20% the area will be

679

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Zulus always speak truth and Hutus always speak lies. There are three persons A,B&C. A met B and says " I am a Zulu or I am Hutu". We don't know what exactly he said. then B meets C and says to c that " A is a Zulu ". Then C replied " No, A is a Hutu ". How many Zulus are there ?

999

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15 tennis players take part in a tournament. Every player plays twice with each of his opponents. How many games are to be played?

1180

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There are two queues at a discount store billing counter. In the first queue there are a1 customers all with b1 items in their cart, while in the second queue there are a2 customers all with b2 items in their cart. It takes t seconds to process each item and p seconds for each person to pay. A customer wishes to know which queue to join.Which one of these options gives the condition for the first queue to be the better queue to join?

670

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1,40,00,000 pencils are put up straight. all the pencils are of length range 3 to 6 inches. 80% of the pencils have average of five inches. so the find out the total length spanned by the penciles.

701

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If there are 1024*1280 pixels on a screen and each pixel can have around 16 million colors Find the memory required for this?

967

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If a car starts from A towards B with some velocity due to some problem in the engine after travelling 30km.If the car goes with 4/5 th of its actual velocity the car reaches B 45min later to the actual time. If the car engine fails after travelling 45km, the car reaches the destination B 36min late to the actual time , what is the initial velocity of car and what is the distance between A and B in km

732

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if f(x)=1/x**2 , then f(f(f(x)))

795

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