Quantitative Aptitude - Arithmetic Ability Questions

Let O be the orthocentre of the triangle ABC. If ∠BOC = 150°, Then ∠BAC is

A triangle has a perimeter of 200. If two of its sides are equal and the third side is 20 more than the equal sides, what is the length of the third side?

Two labourers A and B are paid a total of Rs 650 per day. If A is paid 160 percent of what is paid to B, how much (in Rs) is B paid?

If √(1+tan2A) = x, then the value of x is

Present age of A is 2 times the present age of B. After 8 years the B's age will be 4 times of C's present age. If C celebrated his fifth birthday 9 years
ago, then what is the present age (in years) of A?

Veer spends 15% of his monthly income on the house rent and 60% of the rest on household expenditure. If he saves Rs. 2210, what is his monthly income?

The price of an article is discounted by 25%, to restore to its original value, the new price must be increased by

Three numbers are in the ratio of 3:5:10 and their LCM is 630. Find their HCF.