Answer: Option B. -> ₹13.90
:
B
We know that ₹1= 100 paise.
$⟹\text{1 paisa =}₹\frac{1}{100}=₹0.01$
$\therefore$ 90 paise= 90× ₹0.01= ₹0.9
So, 13 rupees and 90 paise= ₹(13+0.9) = ₹13.9 = ₹13.90

Answer: Option B. -> 32
:
B
The first part of the figure has a circledivided into8parts and 5partsof it are shaded.
$\therefore \text{Fraction}=\frac{5}{8}$
The second part of the figure has a circledivided into8parts and 7parts of it are shaded.
$\therefore \text{Fraction}=\frac{7}{8}$

$\text{Sum}=\frac{5}{8}+\frac{7}{8}=\frac{5+7}{8}=\frac{12}{8}$
But, $\frac{12}{8}=\frac{12÷4}{8÷4}=\frac{3}{2}.$
$\therefore$ The required sum is $\frac{3}{2}.$

Answer: Option B. -> 1.10
:
B
Decimal form of $\frac{1}{2}=0.5$
Decimal form of $\frac{3}{5}=0.6$
$\Rightarrow 0.50\underset{–}{+0.60}\underset{–}{1.10}$

Answer: Option C. -> Both machines were correct
:
C
The value remains the same if zero is after the numbers.

Answer: Option B. -> 17,16,13,12
:
B
$\frac{1}{7}=0.14,\frac{1}{6}=0.16,\frac{1}{3}=0.33,\frac{1}{2}=0.5$
or
$\frac{1}{7},\frac{1}{6},\frac{1}{3},\frac{1}{2}$
Since the numerators are the same, bigger the denominator smaller the fraction.
7 > 6 > 3 > 2

Answer: Option B. -> 0.25
:
B

Farookh eats 4 pieces of the apple and gives 5 pieces to his friend.
$\therefore \text{Total pieces of apple eaten}=\frac{5}{12}+\frac{4}{12}=\frac{9}{12}\text{Remaining pieces}=1-\frac{9}{12}=\frac{12-9}{12}=\frac{3}{12}\left(\text{Reducing by common factor}\right)=\frac{3÷3}{12÷3}=\frac{1}{4}\text{Multiply by 25 (both numerator and denominator})=\frac{1\times 25}{4\times 25}=\frac{25}{100}=0.25$

Answer: Option D. -> 1.70
:
D
We multiply the numerator and denominator of $\frac{0.34}{0.2}$ by 100 to convert them into whole numbers.
$\frac{0.34\times 100}{0.20\times 100}=\frac{34}{20}=\frac{17}{10}=1.7=1.70$

Answer: Option B. -> 0.4,410
:
B
The rectangleis divided into 10 parts, of which 4 are shaded.
$\therefore \text{Fraction}=\frac{4}{10}$
But, $\frac{4}{10}=\mathrm{0.4.}$
Thus, the correct answer is $0.4,\frac{4}{10}.$

:
$\frac{1}{4}$ is also known as a quarter.

Answer: Option A. -> 810
:
A
If we break a chocolate bar into 10 pieces and take 8 out of them, it will be more than if we break the same chocolate bar into 20 pieces and take 8 out of 20. This is true for the other fractions also.
Hence $\frac{8}{10}$ is the greatest fraction among $\frac{8}{10},\frac{8}{30},\frac{8}{40},\frac{8}{20}$.
We can also see that the numerator in all of the fractions is the same which is 8. However the numerator is increasing, 10, 20, 30, 40.
If the numerator of the fractions are same then the value of the fraction decreases if the value of the denominatorincreases.