The forest area in India is extended upto

Solution
19.5%
Which of the following metals is found in liquid state?

Solution
Mercury (_{80}Hg)is a chemical element also known as quick silver or Hydrargyrum. It is the only metal that is liquld at STP, It is found naturally as Cinnabar (HgS Mercury Sulphide)
Which of the following gave the slogan – ‘India for Indians’ ?

Solution
AryaSamaj
Bamboo is a plant of which family?

Solution
Bamboo is a group of Perennlel evergreens in the True grass family Poaceae, subfamily Bambu sotdeae, tribe Banmbuseae. Giant bamboos are the largest members of Grass family
f x and y are two such digits in 65xy that the number formed is exactly divisible by 80. The n (x + y) is equal to

Solution
A number is divisible by 8 if the number formed by last three digits is divisible by 8.
If x=6 and y=0 the n 6560 is exactly divisible by 80 as 656 is divisible by 8
∴x+y=6+0=6
The HCF of two numbers is 11 and their LCM is 7700. If one of the them is 275, the other number is

Solution
First Number × Second
Number= HCF × LCM
=275 × Second Number
=11 × 7700
= Second Number
\(\frac{11\times 7700}{275}=308\)
The number of 3digit numbers divisible by 6, is

Solution
Number of 3digit numbers
=99999=900
∴ Number of numbers divisible by
6=^{900}⁄_{6}=150
If the cost price of 12 tables is equal to the selling price of 16 tables, then the loss per cent is

Solution
Let the CP of each table= Re.1
∴CP of 16 tables=Rs.16
SP of 16 tables= Rs. 12
∴ Loss%=^{4}⁄_{16}×100=25%
A fraction which bears the same ratio to ^{1}⁄_{27} as ^{3}⁄_{11} bears to ^{5}⁄_{9} is equal to

Solution
Let the required fraction=x.
According to the question.
\(x:\frac{1}{27}=\frac{3}{11}:\frac{5}{9}\)
⇒\(x\times \frac{5}{9}=\frac{1}{27}\times \frac{3}{11}=\frac{1}{99}\)
⇒x=\(\frac{1}{99}\times \frac{9}{5}=\frac{1}{55}\)
The average of first 50 natural numbers is

Solution
Sum of first n natural numbers
\(=\frac{n(n+1)}{2}\)
∴ Average of first n natural
numbers \(=\frac{n+1}{2}\)
∴ Required average
\(=\frac{50+1}{2}=\frac{51}{2}=25.5\)