Question

In three unit test of mathematics priya got 75,82,and 90 how many marks must she obtain in unit test IV to have an average of 85 in all the four unit tests three unit test of mathematics Priya got 7582 and 90 marks how many marks must she obtain in unit test 4th to have an average of 85 in all the unit all the four units test unit tests

Answer 1

Answer:

93

Step-by-step explanation:

GIVEN:

out of 4 unit tests in three unit tests she got 75 , 82,90

solution:

she has to get 85 as average of all four tests

so let 4 th test marks be 'x'

by the above data 75+82+90+x÷4=85

247+x÷4=85

247+x=85×4

247+x=340

x=340-247

x=93

hence she as to get 93 marks in 4 th test to maintain an average of 85 in all four tests

Answer 2

please give tq request.