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Asked by Venkatesh

Nov 13, 2013

The ratio of the sum of n terms of two A.P.s is (7n+1):(4n+27).Find the ratio of their mth term.

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Answer (5)

Asked by Hyadarani

Apr 15, 2014

Show that one and only one out of n,n+2,n+4 is divisible by 3, where n is any positive integer.

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Answer (2)

Asked by Yash Ukas

Jan 18, 2015

What are the values of log from 1 to 10?

log 1 = 0

Answer (3)

Find the greatest 6 digits number exactly divisible by 24, 15,and 36.

Answer.

We will find out the LCM of 24,15 and 36 is 360.

Now, greatest 6-digit number is 999999.

Now, We will divide this number by LCM of 24,15 and 36, we will get,

9999...

Answer (2)

Asked by Krishna Bhakthochidan

Aug 20, 2013

Sir, Can you please solve the following:-

If the polynomial X4- 6X3+16X2-25X+10 is divided by another polynomial X2-2X+k, the reminder is X+a . Find k and a

Answer.

Given that the remainder is (x + a)
⇒ (4k – 25 + 16 – 2k)x + [10 – k(8 – k) ] = x + a  
⇒ (2k – 9)x + [10 – 8k + k<...

Answer (3)

Asked by P duraisami

Apr 28, 2014

A plane left 30 min later than the scheduled time and in order to reach the destination 1500km away in time it has to increase the speed by 250km/h from the usual speed. Find its usual speed

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Answer (2)

Asked by Lavanya N

Nov 24, 2013

If mth term of an A.P is 1/n and the nth term is 1/m show that the sum of mn term is 1/2(mn+1)

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Answer (2)

Asked by Pranav Satti

Sep 1, 2014

In an equilateral Δ ABC, the side BC is trisected at D. Prove that 9AD2 = 7AB2

In this solution triangle ABC and ACE is taken in place of ABC, ABE should be taken.

Answer (3)

Asked by Pragasam Ravi

May 22, 2015

Find the largest number which divide 615 and 963 leaving remainder 6 in each case.

Answer.

To find the largest number which divides 615 and 963 leaving remainder 6 in each case i.e. HCF.

Consider HCF be x.

In order to make 615 and 963 completely divisible by x, w...

Answer (2)

Asked by Sparsh

Apr 27, 2015

Prove that the product of three consecutive positive integer is divisible by 6.

Answer.

Let us three consecutive  integers be, n, n + 1 and n + 2.
Whenever a number is divided by 3 the remainder obtained is either 0 or 1 or 2.
let n = ...

Answer (2)

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