Question Detail

In a class free notebooks were distributed among all the children. Each child got notebooks which were one-eighth of the number of children. If number of children been half, then each child would have recieved 16 notebooks in total. Find the total number of books distributed.

Answer: Option B

Explanation:

Let suppose total number of students in class are X.
Then from the question we can conclude it that,

$\begin{aligned} X*\frac{1}{8}X = \frac{X}{2}*16 \\ => X = 64\\ \text{Total notebooks,} \\ = \frac{1}{8}X^2 \\ = \left( \frac{1}{8} * 64 * 64 \right) \\ = 512 \end{aligned}$

1. $\begin{aligned} 3034 -(1002 \div 20.04) = ? \end{aligned}$

1964
1984
2964
2984

Answer: Option D

Explanation:

$\begin{aligned} = 3034 -( \frac{1002}{2004} \times 100) \end{aligned}$

$\begin{aligned} = 3034 - 50 = 2984 \end{aligned}$

2. What fraction of $\begin{aligned} \frac{4}{7}\end{aligned}$ should be added to itself to become $\begin{aligned} 1\frac{1}{14} \end{aligned}$

$\begin{aligned} \frac{7}{8} \end{aligned}$
$\begin{aligned} \frac{7}{9} \end{aligned}$
$\begin{aligned} \frac{7}{10} \end{aligned}$
$\begin{aligned} \frac{7}{11} \end{aligned}$

Answer: Option A

Explanation:

$\begin{aligned} => \frac{4}{7}x + \frac{4}{7} = \frac{15}{4} \end{aligned}$

$\begin{aligned} = \frac{4}{7}x = \frac{15}{4} - \frac{4}{7} \end{aligned}$

$\begin{aligned} = \frac{4}{7}x = \frac{7}{14} \end{aligned}$

$\begin{aligned} = x = \frac{1}{2}\times \frac{7}{4} = \frac{7}{8} \end{aligned}$

3. 18800 / 470 / 20

Answer: Option B

Explanation:

18800 / 470 / 20 = (18800 / 470) / 20 = 40 / 20 = 2

4. Simplify
$\begin{aligned} 1+\frac{1}{2}+\frac{1}{4}+\frac{1}{7}+\frac{1}{14}+\frac{1}{28} = ? \end{aligned}$

Answer: Option A

Explanation:

By taking LCM we get
=

$\begin{aligned} \frac{28+14+7+4+2+1}{28} = \frac{56}{28} = 2\end{aligned}$

5. 7500 + (1250 / 50)

7500
7525
7550
8000

Answer: Option B

Explanation:

As per BODMAS rule first we will solve the terms in the bracket then other.
= 7500 + (25) = 7525

Question Detail

In a class free notebooks were distributed among all the children. Each child got notebooks which were one-eighth of the number of children. If number of children been half, then each child would have recieved 16 notebooks in total. Find the total number of books distributed.

1. $\begin{aligned} 3034 -(1002 \div 20.04) = ? \end{aligned}$

2. What fraction of $\begin{aligned} \frac{4}{7}\end{aligned}$ should be added to itself to become $\begin{aligned} 1\frac{1}{14} \end{aligned}$

3. 18800 / 470 / 20

4. Simplify
$\begin{aligned} 1+\frac{1}{2}+\frac{1}{4}+\frac{1}{7}+\frac{1}{14}+\frac{1}{28} = ? \end{aligned}$

5. 7500 + (1250 / 50)

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Question Detail

In a class free notebooks were distributed among all the children. Each child got notebooks which were one-eighth of the number of children. If number of children been half, then each child would have recieved 16 notebooks in total. Find the total number of books distributed.

1. 3034−(1002÷20.04)=?\begin{aligned} 3034 -(1002 \div 20.04) = ? \end{aligned}

2. What fraction of 47\begin{aligned} \frac{4}{7}\end{aligned} should be added to itself to become 1114\begin{aligned} 1\frac{1}{14} \end{aligned}

3. 18800 / 470 / 20

4. Simplify 1+12+14+17+114+128=?\begin{aligned} 1+\frac{1}{2}+\frac{1}{4}+\frac{1}{7}+\frac{1}{14}+\frac{1}{28} = ? \end{aligned}

5. 7500 + (1250 / 50)

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1. $\begin{aligned} 3034 -(1002 \div 20.04) = ? \end{aligned}$

2. What fraction of $\begin{aligned} \frac{4}{7}\end{aligned}$ should be added to itself to become $\begin{aligned} 1\frac{1}{14} \end{aligned}$

4. Simplify
$\begin{aligned} 1+\frac{1}{2}+\frac{1}{4}+\frac{1}{7}+\frac{1}{14}+\frac{1}{28} = ? \end{aligned}$