The largest reserve of mica is in

Solution
India
In IndoPak subcontinent, there are four oldest Harappan sites. First one is

Solution
Dholavira Ganeriwala
Find the missing number 3, 6, 18, 72, ( …..)

Solution
The ozone layer of atmosphere saves us from

Solution
Ozone layer (O_{3}) of atmosphere saves us from UV rays.
The gases which deplete
ozone layer are mainly CO_{2} and chioro Fluoro Carbon (CFCS).
Colour: Painter: : Wood: ?

Solution
Carpenter
A Pupil is related to ….. in the same way as a Sepoy is related to Army.

Solution
Class
In a class of 60 students. the number of boys is twice the number of girls.The position of Kamla is 17th from the top. If there are 9 boys above Kamla, then number of girls after Kamla is

Solution
Total Girls^{1}⁄_{2}Boys
= \(\frac{1}{1+2}\)Total Students
= \(\frac{1}{3}\times 60\)= 20 girls.(1)
Now↓16 students  9 boys = 7 Girls. ...(2)
Kamla 17^{th}1 Girl
↓Total Girls after after kamla
= 20 (7 + 1)
= 12 Girls
What interest will be had on Rs. 450 in 2 yeas if an interest of Re. 0.40 is charged on Re. 1 for 4 years?

Solution
Rate of interest
= Re. 0.40 at Re. 1 for 4 years
= Re. 0.10 at Re. 1 for 1 year
∴ S.I. = \(\frac{Principal \times time\times Rate}{100}\)\(\frac{450 \times 2\times 10}{100}= Rs. 90\)
A work can be comopleted by 26 men in 17 days. To complete the work in 13 days. the number of additional men required is

Solution
Where × = number of men
∴ 13: 17=26:x
⇒ 13 × x = 17 × 26
⇒ x=\(\frac{17\times 26}{13}=34\)
∴ Number of additional men
=3426=8
The difference between a number and ^{2}⁄_{5} the of the number is 30, The number is

Solution
Let the number be x.
According to the question,\(x\frac{2x}{5}=30\)
\(\Rightarrow \frac{3x}{5}=30\)
\(\Rightarrow x=\frac{30\times 5}{3}=50\)