Quantitative Aptitude - Arithmetic Ability Questions

The average of 10 numbers is X and one of the number is 38. If 38 is replaced with 19, then what will be the new average?

The total cost of a stove with cooker was Rs 13,125. The cooker was sold at a profit of 30% and the stove at a loss of 20%. If the sale price was the same in both the items, then the cost price of the cheaper item was

How long does a train, 75 m long, moving at 60 km/hr take to pass a certain telegraph post?

In ΔPQR, PQ = PR = 18 cm, AB and AC are parallel to lines PR and PQ respectively. If A is the mid-point of QR, then what is the perimeter (in cm) of quadrilateral ABPC?

If a + b + c = 9 and ab + bc + ca = 18, then what is the value of a3 + b3 + c3 – 3abc?

ΔABC is right angled at B. BD is an altitude. AD = 9 cm and DC = 16 cm. What is the value of BD (in cm)?

At 10% discount the selling price of an article is Rs 4500, what is the selling price (in Rs) if the discount is 27.5%?

If cosec θ + sinθ = 5/2 then the value of cosecθ - sinθ is