For the following questions answer them individually
Four years ago, the average age of 45 employees in an office was 32 years. During this period 3 more persons joined the company and at present the average age of the company's employees is 37 years. Whai is the average age of the 3 new employees?
The average of four 3-digit numbers 34$$x$$, 197,6$$x$$4 and 348 is 386. What is the average of (3$$x$$ + 1) and (7$$x$$ - 2) ?
A motorist travels a certain in distance at an average speed of 48 km/h and returns at an average speed of 32 km/h. What is the average speed (in km/h) for the whole journey?
If the ratio of the base radii of a cylinder and a cone is 1 : 2 and that of their heights is 2 : 1, then what is the ratio of the volume of the cylinder to that of the cone?
The LCM of two numbers is 45 times their HCF, and the sum of the LCM and HCF is 1518. If one of the numbers is divided by 16, the quotient is 18 and the remainder is 9. What is the other number?
$$2 + 3 \div 2 of \frac{3}{2} + 2\left(4 \times 2 \div 2 of \frac{1}{2} + 2 - \frac{1}{2}\right)$$, after simplification, will give the result as:
A shopkeeper buys a gadget for ₹1,125 after getting 25% discount. If he sells it by allowing 10% discount on the marked price, then how much does he gain?
A man sells two mobile phones for 6,000 each, gaining 25% on one and losing 25% on one other. What is his gain or loss percent in whole transaction (up to two decimal places)?
A certain sum amounts to ₹2,236 in $$3\frac{3}{4}$$ years at 8.8% p.a. at simple interest. What will be the simple interest (in ₹) on
the same sum at the same rate in $$4\frac{3}{8}$$years?
