Question 72 (e)
Find the value of 2×3×4÷20×30×40
2×3×4÷20×30×40=2×3×4÷1×1×1×1=2×3×41×1×1=2×3×4=24
Question 72 (d)
Find the value of (20+30+40)(40−30−20)
Question 72 (f)
Find the value of (80−20)×(80+20)
If the mean of the following frequency distibution is 24, find the value of p. Class0−1010−2020−3030−4040−50Frequency34p32