UGC NET Math Reasoning Q32

Question

Identify the correct mathematical statements:
A. The expression $\frac{1}{5 	imes 6} + \frac{1}{6 	imes 7} + \frac{1}{7 	imes 8} + \dots + \frac{1}{24 	imes 25}$ is equal to $\frac{4}{25}$
B. Of the three numbers, second is twice the first and is also thrice of the third. If the average of three numbers is 55, then largest number is 90.
C. If $(a+b):(b+c):(c+a) = 6:7:8$ and $a+b+c=14$, then value of $c$ is 8
D. $\frac{0.2 	imes 0.2 + 0.02 	imes 0.02 - 0.4 	imes 0.02}{0.18}$ is equal to 0.09
Choose the correct answer from the options given below

Accepted Answer

B and C only