Quantitative Aptitude - Arithmetic Ability Questions

A group of boys has an average weight of 36 kg. One boy weighing 42 kg leaves the group and another boy weighing 30 kg joins the group. If the average now becomes 35.7 kg, then how many boys are there in the group?

874.96 + 94.0091 × 34.98 –1244.98 = ?

A, B and C invest to start a restaurant. The total investment was Rs 3 lakhs. B invested Rs 50,000 more than A and C invested Rs 25,000 less than B. If the profit at the end of the year was Rs 14,400 then what is C's share of the profit (in Rs)?

A fraction is greater than its reciprocal by (72)/(77). What is the fraction?

Square of (3x – 5xy) is

ΔABC is right angled at B. BD is the altitude. AD is 18 cm and DC is 50 cm. Find length of BD?

What will be the average of the first 5 positive even numbers divisible by 9?

Find the common factor of 3757+ 4357 and 3737+ 4337