Quantitative Aptitude - Arithmetic Ability Questions

In the following question, select the odd letter/letters from the given alternatives.

Select the odd word/letters/number/number pair from the given alternatives.

What is the slope of the line 4x - 8y = 3?

What would be the compound interest of Rs. 25000 for 2 yrs. at 5% per annum?

Triangle PQR is such that PQ = 9 cm, QR = 6 cm, PR = 7.5 cm and triangle PQR is similar to triangle XYZ. If XY = 18 cm, find the value of YZ.

Which of the following numbers is divisible by 12?

Mohan starts to calculate sum of all odd natural number less than 83. What result does he get?

PQR is a right angled triangle in which ∠R = 90°. If RS ⊥ PQ, PR = 3 cm and RQ = 4 cm, then what is the value of RS (in cm)?