Write the number in the box such that [ ] such that `3/7 xx [ ] = 15/98`

Provide the number in the box such that 2/3 xx __ = 10/30

Write the proper number in the empty boxes : 3/2=(3xx□ )/(2xx□ )= □ /10=□

Write the proper number in the empty boxes : 25/8=(25xxsquare)/(8xx125)=(square)/1000=square

There are two boxes, red and white in colour. The ratio of the number of chocolates in the white box to the number of biscuits in the red box is 3 : 2 and the ratio of the number of biscuits in the white box to the number of chocolates in the red box is 3 : 4 . If the ratio of the total number of chocolates and biscuits in the white box to the total number of chocolates and biscuits in the red box is 15 : 16 . Find the ratio of the total number of chocolates to the total number of biscuits in the two boxes.

If four numbers in A.P. are such that their sum is 50 and the greatest number is 4 times the least, then the numbers are (a) 5, 10, 15, 20 (b) 4, 10, 16, 22 (c) 3, 7, 11, 15 (d) none of these

Find a number such that when 15 is subtracted from 7 xx the number,the result is 10 more than twice the number.

2/5xx?xx 1 1/3 = 7/15

Write the following in the form of exponents: (i) 5^4 xx (-5)^2 (ii) 15 xx (-15)^(25) (iii) 12^5 / (-12)^3 (iv) (-p)^(14) / (-p)^7