Question

The average amount of A, B, C was 30 and that of B,
C, D was 35. If A was 32, what was the D on?
1. 40 2. 49 3. 48 4. 47

Answer 1

Answer:

47

Step-by-step explanation:

a+b+c/3=30

a+b+c=90-------(1)

b+c+d/3=35

b+c+d=105----(2)

a=32

then equation (1) put the values

b+c=105-d

then 32+105-d=90

137-d=90

137-90=d

d=47