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CBSE Notes 2011-2012 » VIII-Maths

# Linear Equations in One Variable

## A motorboat goes downstream and covers a distance in 8 hours while it covers the same distance upstr...

Multiple choice question

A motorboat goes downstream and covers a
distance in 8 hours while it covers the same
distance upstream in 12 hours. If the speed of
the stream is 2 km /hr, then speed of the
motorboat in still water is

## A motorboat goes downstream and covers a distance in 10 hours, while it covers the same distance ups...

Multiple choice question

A motorboat goes downstream and covers a
distance in 10 hours, while it covers the same
distance upstream in 14 hours. If the speed of
the stream is 2 km/hr, then total distance
covered by the motor boat (upstream + down
stream) is

## In an examination a student scores 4 marks for every correct answer and losses 1 mark for every wron...

Multiple choice question

In an examination a student scores 4 marks
for every correct answer and losses 1 mark for every wrong answer. If he attempts 75 questions and scored 125 marks, then the number of questions he attempts correct is

## A worker may claim Rs. 15 for each km which he travels by taxi and Rs. 5 for each km which he drives...

Multiple choice question

A worker may claim Rs. 15 for each km which
he travels by taxi and Rs. 5 for each km which
he drives his own car. If in one week he claimed Rs. 500 for travelling 80 km, then how
many km did he travel by taxi ?

## Two numbers are such that the ratio between them is 4 : 7. If each is increased by 4, the ratio beco...

Multiple choice question

Two numbers are such that the ratio between
them is 4 : 7. If each is increased by 4, the
ratio becomes 3 : 5. The larger number is

## The ratio of the ages of Hina and Kanika is 4 : 3 . The sum of their ages is 28 years. The age of Hi...

Multiple choice question

The ratio of the ages of Hina and Kanika is
4 : 3 . The sum of their ages is 28 years. The
age of Hina is