Raju ranks 10th from the top and Raviranks 21st from the bottom. If there are 3 students between them, how many students are there in the class?

Solution
Total number of students in the class
= 21 + 10 + 3 = 34
Which word cannot be formed from the letters of the word “CARDIOGRAM”?

Solution
There is no 'E' letter in the given word.
If ‘+’ stands for division, ‘÷’ stands for multiplication, ‘x’ stands for addition; which of the following equations is correct ?

Solution
(A) 10 ÷ 5 + 4 = 6
⇒ 10 × 5 ÷ 4 = 6
⇒ \(\frac{10×5}{4}\neq 6\)(B) 10  4 + 2 = 6
10  4 ÷ 2 = 6
⇒ 10  2 ≠ 6(C) 10 + 2  5 = 6
⇒ 10 ÷ 2  5 ≠ 6(D) 10 + 2 × 1 = 6
⇒ 10 ÷ 2 + 1 = 6
⇒ 5+1=6
If J = 10, JASMINE = 71; then ESTIMATE=?

Solution
J = 10 ⇒ Position Number in English alphabetical series.
Seeta starts from a point, walks 2 km towards north, turns towards her right and walks 2 km, turns right again and walks. What is the direction she is facing now ?

Solution
Now Seeta is facing towards south
The element used for making solar cells is
Decibel is a term connected with air.s?
The radioactive StrontiumSo causes
Insulin was discovered by
Where does a computer add compare and shuffle data?
The compound interest on ₹30000 at 7% per annum for a certain time is ₹4,347. The time is

Solution
\(A = P\left ( 1+\frac{R}{100} \right )^{T}\)
\(⇒30000 + 4347= 30000\left ( 1+\frac{7}{100} \right )^{T}\)
\(⇒\frac{34347}{30000}=\left ( \frac{107}{100} \right )^{T}\)
\(⇒\frac{11449}{10000}=\left ( \frac{107}{100} \right )^{2}=\left ( \frac{107}{100} \right )^{T}\)
⇒Time = 2 years
A person invests ₹2,000 as fixed deposit at a bank at the rate of 10% per annum simple interest. But due to some pressing needs he has to withdraw the entire money after 3 years, for which the bank allowed him a lower rate of interest. If he gets ₹3,820 less than what he would have got at the end of 5 years, the rate of interest allowed by the bank is

Solution
SI after five years =\(\frac{Pr incipal \times Time \times Rate}{100}\)
\(=Rs\frac{12000\times 5\times 1O}{100}= Rs\: 6000\)
interest earned
= Rs (6000  3320) = Rs 2680\(⇒Rate =\frac{SI \times 100}{Principal \times Time}\)
\(=\frac{2680\times 100}{12000 \times 3}=\frac{67}{9}=7\frac{4}{9}%\)
Two men start together to walk a certain distance, one at 4 km/hr and another at 3 km/hr. The former arrives half an hour before the latter. Find the distance.

Solution
Let the required distance be x km, then
\(\frac{x}{3}\frac{x}{4}=\frac{1}{2}\: \: ⇒\frac{4x3x}{12}=\frac{1}{2}\)
\(⇒\frac{x}{12}=\frac{1}{2}\: \: ⇒x=6km.\)
The speed of a bus is 72 km/ hr. The distance covered by the bus in 5 seconds is

Solution
Speed of bus = 72 kmph
\(=\left ( \frac{72\times 5}{18} \right )\: metre/second\)
= 20 metre/second
∴ Required distance = (20 × 5 )= 100 metres
From 2008 to 2009, the sales of a book decreased by 80%. If the sales in 2010 were the same as in 2008, by what per cent did it increase from 2009 to 2010?

Solution
Number of books sold in 2008 = 100
Number of books sold in 2009 = 20
Number of books sold in 2010 = 100
⇒ Required percentage increase\(=\frac{100 20}{20}\times 100=400%\)
Which of the following imparts a blue colour to glass?
The term of office of the Comptroller and Auditor General of India is
Arrange the following Magadhan dynasties in chronological order:
I. Nandas II. Sisunagas
III. Mauryas IV. Haryankas
On April 12, 1944 Sub hash Chandra Bose hoisted the INA Flag in a town. In which State/ Union Territory is that town now?
Who propounded the Panchsheel Principles?