Due to 10% reduction in price of vegetable oil, Sampath can now buy 7 liters more vegetable oil without changing his total expenditure on vegetable oil. If he spends Rs3150 on vegetable oil, find the original price of vegetable oil.

Following chart shows marks obtained by students in Geography examination. If passing marks are 50, find the number of students who passed in the exam.

For the school assembly, the students are made to stand so that the number of rows is equal to the number of students in each row. If there are 50 rows, how many students were present at the assembly?

Buddhika picks a three digit number and subtract it from the same number after reversing order of its digits. If this difference is divided by 9, find the remainder.

A.

2

B.

1

C.

0

D.

Can not be determined without knowing exact number

Roshan is brother of Gayan. Sanduni is sister of Roshan. Ravindu is brother of Bhagya. Bhagya is daughter of Gayan. Ishara is father of Sanduni. Who is the uncle of Ravindu?