- 4 : 7
- 5 : 9
- 8 : 13
- Cannot be determined
- None of these
Answer: Option 5
Let the first number be x and the second number be y $$\frac{1}{4}{\text{ of 60% of }}x = \frac{2}{5}{\text{ of 20% of }}y$$ $$\eqalign{ & \Rightarrow \frac{1}{4} \times \frac{{60}}{{100}} \times x = \frac{2}{5} \times \frac{{20}}{{100}} \times y \cr & \Rightarrow \frac{{3x}}{{20}} = \frac{{2y}}{{25}} \cr & \Rightarrow \frac{x}{y} = \frac{2}{{25}} \times \frac{{20}}{3} \cr & \Rightarrow \frac{x}{y} = \frac{8}{{15}} \cr} $$
Answer: Option 5 Let the numbers be x and y $$\eqalign{ & {\text{Then,}} \cr & = \frac{1}{4}{\text{ of }}\left( {60\% {\text{ of }}x} \right) \cr & = \frac{2}{5}{\text{ of }}\left( {20\% {\text{ of }}y}...
1 Answers 1 viewsAnswer: Option 2 Let'
1 Answers 1 viewsAnswer: Option 4 Any four digit number in which first two digits are equal and last two digits are also equal will be in the form 11 × (11a +...
1 Answers 2 viewsAnswer: Option 1 Difference in times required by the first man (A) and second man (B) = 3 hours. Also, if ta and tb are the respective times, then tb -...
1 Answers 6 viewsAnswer: Option 3 Since 8th to the left of 12th from the right is 20th from the right, so from I, we know that Vishakha is 5th from left and...
1 Answers 1 viewsAnswer: Option 3 The seven pieces consist of 6 smaller equal pieces and one half cake piece. Weight of each small piece = 20 g. So, total weight of the cake =...
1 Answers 1 viewsAnswer: Option 2 Let'
1 Answers 4 viewsAnswer: Option 2 A direct food relation between two species of animals in which one animals kills and feed on another is referred as predation and a relationship between two...
1 Answers 1 views