Question

in an examination a gets 10% more than b and b gets 5% more than c. if c gets 300 marks out of 400 then what is a's marks?

Answer 1

total marks of examination=400marks

Find the % age of marks that c gets :
_______________________________
Given that the marks c gets =300/400

=300 / 400 × 100 = 75 %
_______________________________
Given,b gets 5% marks more than c .
Find the % age of marks that b gets :
_______________________________
the marks b gets = C's marks + 5 %

=75% + 5% = 80 %
_______________________________
since,'a' gets 10% marks more than b
Then , Find the marks that ' a ' gets :
_______________________________
the marks 'a' gets = b's marks + 10%

=80% + 10% = 90%

therefore,

the marks'a' gets = 90 % of total marks

= 90% of 400

= 90 × 400 /100 = 360 marks
_______________________________
Your Answer : ' a ' gets = 360 marks
_______________________________

Answer 2

Step-by-step explanation:

b get 5%more than c

=100+5/100*300

= 105*3

=315

B get 315

Now a get 10%more than b

= (10/100*315 )+315

= 31.5+315

=346.5

=347 (approx)

Hope it helps

Please mark as Brainliest