Quantitative Aptitude - Arithmetic Ability Questions

ax + 5y = 8 has slope of -4/3. What is the value of a?

What is the value of 13×7+17×11+111×15+...+1899×903 ?

If 1/(1 + cosA) + 1/(1 ­- cosA) = x , then value of x is

Find out the odd word/letters/number/number pair from the given alternatives.

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

In the following question, select the odd word from the given alternatives.

What is the value of a-b when a2+b2-6a-6b+18 = 0 ?

Simplify 81x2 - 49y29x + 7y