TOP QUESTIONS AND ANSWERS FOR YOU

Maths

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8th

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January 31, 2022

4. 13 and 31 is a strange pair of numbers such that their squares 169 and 961 are also mirror images of each other. Find two more such pairs.

David Miller

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Student

Solution:

Maths

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8th

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January 31, 2022

3. A man, after a tour, finds that he had spent every day as many rupees as the number of days he had been on tour. How long did his tour last, if he had spent in all ₹ 1,296

David Miller

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Student

Solution:

Maths

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8th

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January 31, 2022

2.Out of 745 students, maximum are to be arranged in the school field for a P.T. display, such that the number of rows is equal to the number of columns. Find the number of rows if 16 students were left out after the arrangement.

David Miller

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Student

Solution:

Maths

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8th

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January 31, 2022

1.Which is the smallest number that must be multiplied to 77175 to make it a perfect cube?

David Miller

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Student

Solution:

Maths

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8th

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January 28, 2022

Insert seven rational numbers between 2 and 3.

David Miller

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Student

since we need seven rational numbers

multiply the given rational numbers by 8/8

2*8/8=16/8

3*8/8=24/8

thus seven rational numbers between 2 and 3 are 17/8,18/8,19/8,20/8,21/8,22/8,23/8.

Maths

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8th

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January 28, 2022

Divide the sum of

David Miller

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Student

the sum of 5/8 and -11/8=-7/24

the difference of 3/7 and 5/14=-1/14

now divide the answers-7/24 by -1/14

-7/24 x 14/-1= 49/12

Maths

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8th

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January 28, 2022

By what number should

David Miller

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Student

the required number is 16 divided by -8/13

=16 x -13/8 = -26

Science

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12th

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January 27, 2022

write the method to synthesis of phenol?

pooja test test murthy

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Teacher

Maths

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9th

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January 24, 2022

**2. Given log2 x = m and log5 y = n**

**(i) Express 2m-3 in terms of x**

Joslin Smith

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Student

Given, log2 x = m and log5 y = n

So,

2m = x and 5n = y

(i) Taking, 2m = x

2m/23 = x/23

2m-3 = x/8

Maths

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9th

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January 24, 2022

1. ** If loga m = n, express an – 1 in terms in terms of a and m.**

Joslin Smith

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Student

We have, loga m = n

So,

an = m

Dividing by a on both sides, we get

an/a = m/a

an-1 = m/a