Problems Involving Difference of Fractions

Q.

Bittu has fever. At 9 A.M, his temperature was 36°C, At 1 AM, his temperature decreased by $2\frac{1}{2}$°C. Find his temperature after the decrease.

1. $33\frac{1}{2}$°C

2. $23\frac{1}{2}$°C

3. $23\frac{1}{2}$°C

4. $30\frac{1}{2}$°C

Q.

$-20-3\frac{1}{2}$ = ___

1. -23$\frac{1}{2}$

2. 23$\frac{1}{2}$

3. -13$\frac{1}{2}$

4. 13$\frac{1}{2}$

Q.

$10-3\frac{1}{2}$

1. $7\frac{1}{2}$

2. $-7\frac{1}{2}$

3. $-6\frac{1}{2}$

4. $6\frac{1}{2}$

Q.

An examination has 10 questions. Each correct answer gets 1 mark, and for each wrong answer $\frac{1}{2}$ a mark gets reduced. If Anu got 3 answers right, and 7 answers wrong, what would be her total marks?

1. $\frac{9}{2}$

2. $\frac{-1}{2}$

3. $\frac{1}{2}$

4. $\frac{-1}{8}$

Q.

$(-4\frac{1}{2}-3\frac{1}{2})$ = ____

1. -3

2. -8

3. 8

4. 2

Q.

$-2\frac{1}{2}-3\frac{1}{2}$ = _____

1. 9

2. -6

3. -4

4. 6

Q.

-$3\frac{1}{2}-4\frac{1}{2}$ = ______

1. -8

2. 7 $\frac{1}{2}$

3. -7 $\frac{1}{2}$

4. -9 $\frac{1}{2}$

Q.

Niki is playing a game. Each correct answer gets 1 mark, and for each wrong answer $\frac{1}{2}$ a mark gets reduced. If Niki got 1 answer right, and 9 answers wrong, what would be her total marks?

1. $-3\frac{1}{2}$

2. $-6\frac{1}{2}$

3. $-7\frac{1}{2}$

4. $-2\frac{1}{2}$

Q.

1/2 - 1 = ____

1. -1/2

2. 3/2

3. 5/2

4. 7/2

Q.

Arun's phone has a balance of Rs. 1. After speaking on phone for a while, his balance reduced by 7$\frac{1}{2}$ Rs. Find his new balance.

1. - 9$\frac{1}{2}$ Rupees.

2. - 6$\frac{1}{2}$ Rupees.

3. - 10$\frac{1}{2}$ Rupees.

4. - 21$\frac{1}{2}$ Rupees.