.Instead of multiplying by 25, a student multiplies that number by 52 and gets 324 more than correct answer. Then that number is
1). 15
2). 12
3). 25
4). 32
Sum of the factors of $4b^{2}c^{2}-(b^{2}+c^{2}-a^{2})$
1). a + b + c
2). 2(a + b + c)
3). 0
4). 1
A man travels ¾th of the distance of his
journey by bus, ⅙th by Rickshaw and 2 km on foot. The
total distance travelled by the man is
1). 12 km
2). 18 km
3). 20 km
4). 24 km
A money lender lends Rs. 400 for 3 years to a person and lends Rs. 500 for 4 years to the other person at the same rate of simple interest. If altogether
he receives Rs. 160 as interest, what is the rate of interest per annum ?
1). 5%
2). 7%
3). 9%
4). 10%
The salary of a person is reduced by 20% . To restore the previous salary, his present salary is to be increased by
1). 20%
2). 25%
3). 17.50%
4). 22.50%