Question

The table below shows Vishal’s scores in 4 of the 5 subjects for which he wrote tests.

Answer 1

Answer:

ans (c) 65

Step-by-step explanation:

maths :- score-(72)

spelling:- score-72-14= (58)

creative writing :- score -(70)

science:- score-70+5= (75)

finding social studies score so,

we know that mean of given data is 68

there are 5 subject so,

n=5

FiXi=all subjects score (addition)

=72+58+70+75+x{x= score of s.s}

=275+x

then use

$mean = fixi \div n$

68=275+x÷5

then,

68×5=275+x

340-275=x

then ans is 65