Question

The average marks obtained by Vijay in Mathematics, social sciences and mothertongue is 88. His

average marks in social sciences and mother tongue is one less than the original average marks. So he

obtained ______ marks in mathematics.​

Answer 1

Answer:

average marks =88

total subject=3

so, total marks =88*3=264

now, original marks in social science= 88+1 =89

also , original marks in mother tongue=88+1=89

now , suppose that she gets x marks in mathematics ,,,

so , x+89+89=264

x+178=264

x=264-178

x=86

so, marks in mathematics = 86...ans

Step-by-step explanation: