Playing with numbers class 8 EX 14.1 Q1 (4,5)

The ratio of number of girls to the number of boys in a class is 5:4. If there are 25 girls in the class, then the number of boys in the class is

Try converting the following mixed numbers to fractions. Q. 8(1)/(3)

A four figure number is formed of the figures 1, 2, 3, 4, 5 with no repetitions. The probability that the number is divisible by 5 is 3//4 b. 1//4 c. 1//8 d. none of these

Consider the nine digit number n = 7 3 alpha 4 9 6 1 beta 0. If q is the number of all possible values of beta for which the given number is divisible by 8, then q is equal to

Sets , Nios, Class-12, Ch-1 ,Ex-1.1 ,Q-1

Check whether the following numbers are in proportion or not : (1)/(5), (1)/(8),(1)/(4),(1)/(10)

If P = {1,2,3,4,5} and Q = {a,b,c}, then the number of onto functions from P to Q is

The median of 8 numbers is 11. If 7 of these numbers are 26, 12, 3, 8, 5, 20, and 14, find the eighth number.

If vecU=(-1,4) and the resultant of vecU and vecV is (4, 5), find vecV .

Ex 9.1 Q 14 , 15 and 16