Question

In a test (+5) marks are given for every correct answer and (-2) marks are given fir every incorrect answer. Radhika answered all the questions and scored 30 marks though she got 10 correct answer​

Answer 1

Answer:

marks for 10 correct answer = 10×5 =50

she scores = 30

marks lose incorrect answer = 20

number of incorrect answer = 20/2 =10

total question = 20