Question

The average rainfall for a week, excluding Sunday, was 10 cms. Due to heavy rainfall

on Sunday, the average for the week rose to 15 cms. How much rainfall was on

Sunday?​

Answer 1

Answer:

45cm

Step-by-step explanation:

7 days a week....6 days average is 10.....then on 7tg day it rise to 15....so 7th day must be 15cm + 5cm to all 6 days (30cm) so total is 45cm on Sunday........6 days = 6*10=60 ....7 days = 7*15=105.....105-60=45 ....that is the answer

Answer 2

GIVEN :- let the rainfall in 6 days be x

rainfall on sunday be y

PROOF:- x/6=10

x=60cms

( x+y)/7=15

(60+y)/7=15

60+y=105

so, y= 45cms means on Sunday the rain was of 45cms