In a test (+5) marks are given for every correct answer and (-2) marks

1.	In a test (+5) marks are given for every correct answer and (-2) marks are given for every incorrect answer . Roy answered all the questions and scored 30 marks though she got 10 correct? Find the total number of sums .
Answer» Answer: TOTAL number of sums are 20 Step-by-step EXPLANATION: let the number of incorrect Answers be X number of CORRECT answer = 10 marks for every correct answer=+5 total marks she got for correct Answers= 5×10= 50 50+(-2)X=30 50 -2x=30 50- 30= 2x 20 = 2x X= 20 /2 x=10 number of incorrect answer =10 Therefore, Total Number of sums in exam are 20 Hope This Helps You Please Mark As Brainliest

In a test (+5) marks are given for every correct answer and (-2) marks are given for every incorrect answer . Roy answered all the questions and scored 30 marks though she got 10 correct? Find the total number of sums .

Answer»

Answer:

TOTAL number of sums are 20

Step-by-step EXPLANATION:

let the number of incorrect Answers be X

number of CORRECT answer = 10

marks for every correct answer=+5

total marks she got for correct Answers= 5×10= 50

50+(-2)X=30

50 -2x=30

50- 30= 2x

20 = 2x

X= 20 /2

x=10

number of incorrect answer =10

Therefore, Total Number of sums in exam are 20

Hope This Helps You

Please Mark As Brainliest