299739
A survey of 40 children showed that 25% liked playing football. How many children not liked playing football?
1 10
2 30
3 5
4 20
Explanation:
30
COMPARING QUANTITIES
299740
225% is equal to:
1 9 : 4
2 4 : 9
3 3 : 2
4 2 : 3
Explanation:
9 : 4 We have, 225% In percentage, \(225\times\frac{1}{100}=\frac{225}{100}=\frac{9}{4}\) \(\therefore\) Required ratio = 9 : 4 Note: The sign of percentage (%) is removed dividing the number by 100.
COMPARING QUANTITIES
299765
Mark \((\checkmark)\) against the correct answer in the following: A number decreased by 8% gives 69. The number is:
1 80
2 75
3 85
4 None of these.
Explanation:
75 Let x be the required number, then \(=\frac{\text{x}\times(100-8)}{100}=69\) \(\Rightarrow\frac{\text{x}\times92}{100}=69\) \(\text{x}=\frac{69\times100}{92}=75\)
COMPARING QUANTITIES
299759
If x% of \(\frac{12}{5}\ \text{is}\ \frac{18}{25},\) then x =
1 30
2 40
3 72
4 50
Explanation:
30 \(\text{x}\%\ \text{of}\ \frac{12}{5}=\frac{18}{25}\) \(\Rightarrow\frac{\text{x}}{10}\times\frac{12}{5}=\frac{18}{25}\) \(\Rightarrow\frac{12\text{x}\times500}{500}=\frac{18\times500}{25}\) \(\Rightarrow12\text{x}=18\times20\) \(\Rightarrow\text{x}=\frac{18\times20}{12}\) \(\Rightarrow\text{x}=30\) Hence, the correct option is (a).
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
COMPARING QUANTITIES
299739
A survey of 40 children showed that 25% liked playing football. How many children not liked playing football?
1 10
2 30
3 5
4 20
Explanation:
30
COMPARING QUANTITIES
299740
225% is equal to:
1 9 : 4
2 4 : 9
3 3 : 2
4 2 : 3
Explanation:
9 : 4 We have, 225% In percentage, \(225\times\frac{1}{100}=\frac{225}{100}=\frac{9}{4}\) \(\therefore\) Required ratio = 9 : 4 Note: The sign of percentage (%) is removed dividing the number by 100.
COMPARING QUANTITIES
299765
Mark \((\checkmark)\) against the correct answer in the following: A number decreased by 8% gives 69. The number is:
1 80
2 75
3 85
4 None of these.
Explanation:
75 Let x be the required number, then \(=\frac{\text{x}\times(100-8)}{100}=69\) \(\Rightarrow\frac{\text{x}\times92}{100}=69\) \(\text{x}=\frac{69\times100}{92}=75\)
COMPARING QUANTITIES
299759
If x% of \(\frac{12}{5}\ \text{is}\ \frac{18}{25},\) then x =
1 30
2 40
3 72
4 50
Explanation:
30 \(\text{x}\%\ \text{of}\ \frac{12}{5}=\frac{18}{25}\) \(\Rightarrow\frac{\text{x}}{10}\times\frac{12}{5}=\frac{18}{25}\) \(\Rightarrow\frac{12\text{x}\times500}{500}=\frac{18\times500}{25}\) \(\Rightarrow12\text{x}=18\times20\) \(\Rightarrow\text{x}=\frac{18\times20}{12}\) \(\Rightarrow\text{x}=30\) Hence, the correct option is (a).
299739
A survey of 40 children showed that 25% liked playing football. How many children not liked playing football?
1 10
2 30
3 5
4 20
Explanation:
30
COMPARING QUANTITIES
299740
225% is equal to:
1 9 : 4
2 4 : 9
3 3 : 2
4 2 : 3
Explanation:
9 : 4 We have, 225% In percentage, \(225\times\frac{1}{100}=\frac{225}{100}=\frac{9}{4}\) \(\therefore\) Required ratio = 9 : 4 Note: The sign of percentage (%) is removed dividing the number by 100.
COMPARING QUANTITIES
299765
Mark \((\checkmark)\) against the correct answer in the following: A number decreased by 8% gives 69. The number is:
1 80
2 75
3 85
4 None of these.
Explanation:
75 Let x be the required number, then \(=\frac{\text{x}\times(100-8)}{100}=69\) \(\Rightarrow\frac{\text{x}\times92}{100}=69\) \(\text{x}=\frac{69\times100}{92}=75\)
COMPARING QUANTITIES
299759
If x% of \(\frac{12}{5}\ \text{is}\ \frac{18}{25},\) then x =
1 30
2 40
3 72
4 50
Explanation:
30 \(\text{x}\%\ \text{of}\ \frac{12}{5}=\frac{18}{25}\) \(\Rightarrow\frac{\text{x}}{10}\times\frac{12}{5}=\frac{18}{25}\) \(\Rightarrow\frac{12\text{x}\times500}{500}=\frac{18\times500}{25}\) \(\Rightarrow12\text{x}=18\times20\) \(\Rightarrow\text{x}=\frac{18\times20}{12}\) \(\Rightarrow\text{x}=30\) Hence, the correct option is (a).
299739
A survey of 40 children showed that 25% liked playing football. How many children not liked playing football?
1 10
2 30
3 5
4 20
Explanation:
30
COMPARING QUANTITIES
299740
225% is equal to:
1 9 : 4
2 4 : 9
3 3 : 2
4 2 : 3
Explanation:
9 : 4 We have, 225% In percentage, \(225\times\frac{1}{100}=\frac{225}{100}=\frac{9}{4}\) \(\therefore\) Required ratio = 9 : 4 Note: The sign of percentage (%) is removed dividing the number by 100.
COMPARING QUANTITIES
299765
Mark \((\checkmark)\) against the correct answer in the following: A number decreased by 8% gives 69. The number is:
1 80
2 75
3 85
4 None of these.
Explanation:
75 Let x be the required number, then \(=\frac{\text{x}\times(100-8)}{100}=69\) \(\Rightarrow\frac{\text{x}\times92}{100}=69\) \(\text{x}=\frac{69\times100}{92}=75\)
COMPARING QUANTITIES
299759
If x% of \(\frac{12}{5}\ \text{is}\ \frac{18}{25},\) then x =
1 30
2 40
3 72
4 50
Explanation:
30 \(\text{x}\%\ \text{of}\ \frac{12}{5}=\frac{18}{25}\) \(\Rightarrow\frac{\text{x}}{10}\times\frac{12}{5}=\frac{18}{25}\) \(\Rightarrow\frac{12\text{x}\times500}{500}=\frac{18\times500}{25}\) \(\Rightarrow12\text{x}=18\times20\) \(\Rightarrow\text{x}=\frac{18\times20}{12}\) \(\Rightarrow\text{x}=30\) Hence, the correct option is (a).