Answer Posted / gokul

ans is 9
(1/4)x=3*3/4=9

f(x) = 10x3 + ax2 + bx – 63. If f(-1) = -8 and one of the factors of the given equation is 2x + 3, then find the values of 'a' and 'b'.

2218

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A number, when it is divided by 8 it gives a remainder 3 and is divisible by both 3 and 5. Find the number.

1146

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Age of Grandfather is the ages of 4 grandchildren where their ages are in consecutive.Find the age of Grandfather.

1547

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a number of subsets of a set s is 128, then s has

1146

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Subbu starts from a point O at 10.00 am , overtakes Ajay, who is moving in the same direction, at 11.00 a.m. and Bhuvan moving in the opposite direction at 12.00 (noon). If the speed of Bhuvan is one fourth the speed of Subbu, at what time will Ajay and Bhuvan cross each other.

1974

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What is the smallest number by which 4880 must be divided in order to make it into a perfect square ?

1123

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Pipe A can fill a tank in 30 mins and Pipe B can fill it in 28 mins.If 3/4th of the tank is filled by Pipe B alone and both are opened, how much time is required by both the pipes to fill the tank completely ?

1097

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There is a room with 6' x 8'. A 1' tile is fixed along the 4 walls in one row. How many 1" tiles require to finish the work.

1950

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FIND the next number in the series 11,112,1124,11248,--

1159

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There are 6561 cricket balls out of them 1 is heavy. Find the minimum no. of times the cricket balls have to be weighed for finding out the heavy ball.

1195

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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?

1213

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500 men are arranged in an array of 10 rows and 50 columns . ALL tallest among each row are asked to fall out . And the shortest among THEM is A. Similarly after resuming that to their original positions that the shortest among each column are asked to fall out. And the longest among them is B . Now who is taller among A and B ?

1438

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There are no of urns &no of balls. If three balls are placed in each urn then 3 balls is left. If 4 balls are placed in each urn then 1 urn is left. What is the total no of balls?

1126

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Refer to the figure below.A ship started from P and moves at a speed of I miles per hour and another ship starts from L and moving with H miles per hour simultaneously.Where do the two ships meet? ||---g---||---h---||---i---||---j---||---k---||---l---|| PG H I J K L are the various stops in between denoted by || . The values g, h, i, j, k, l denote the distance between the ports.

1229

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2 Oranges,3 bananas and 4 apples cost rs.15 . 3 Oranges 2 bananas 1 apple costs rs 10. What is the cost of 3 oranges, 3 bananas and 3 apples

1242

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