Revision Test - Mistakes

Who is the head of the committee constituted by the Central Government to consider the withdrawal of AFSPA from Nagaland?

A and B can separately finish a work in 15 and 20 days, respectively. A starts the work and B joins him from the fifth day. How much time will it take to finish the complete work?

Joy and Kat run around a circular track of length 1100 m in opposite directions with initial speed of 6 m/sec and 4 m/sec, respectively. Starting from the same point whenever they meet, Joy's speed halves and Kat's speed doubles. After how much time from the beginning will they meet for the second time?

The following question refers to the distribution of expenditures incurred by Rohan under different heads. Rohan has a monthly income of ₹50,000 out of which he spends 60% on different expenditures. What is the total expenditure (in ₹) incurred on Health, Education and Transportation together if they comprise 14%, 25%, and 17% of the total spent amount respectively?

If P=
x
2
−16
x
2
−100
​
and Q=
x−4
x+10
​
, then the value of
Q
P
​
is: