Question
A bag contains certain number of coins of different
denominations. The ratio of the number of Rs. 5 coins to Rs. 10 coins is 7 : 9, respectively and the ratio of number of Rs. 10 coins to Rs. 20 coins is 9 : 11 respectively. Find the total value of the Rs. 20 coins, if the total value of the Rs. 5 coins in the bag is Rs. 350.Solution
Given: Ratio of Rs. 5 coins to Rs. 10 coins = 7:9 Ratio of Rs. 10 coins to Rs. 20 coins = 9:11 Total value of Rs. 5 coins = Rs. 350 Let the number of coins be: Rs. 5 coins = 5x Rs. 10 coins = 9x Rs. 20 coins = y From the ratio of Rs. 10 to Rs. 20 coins: y=11x Total value of Rs. 5 coins: 5×5x=350 25x=350 x=14 Find number of Rs. 20 coins: y=11x=11×14=154 Total value of Rs. 20 coins: Total value=20×154=3080
Two years ago, the sum of the ages of 'Sonia' and 'Ayesha' was 50 years. If the ratio of their present ages is 9:16, respectively, then find the age of ...
When the digits, which are odd in the number ‘ 67894532 ’ are decreased by 2 and the remaining digits are increased by 1, then what is the sum of 5<...
In the word ‘SCIENCE’ all consonants are written as their preceding letter and all vowels are written as their following letters. Now all letters ar...
- Priya bought a gadget at 40% discount on its listed price and later sold it by offering a 20% discount on the listed price. What was her profit percentage?
- In a 300-metre race, ‘Aman’ beats ‘Bhanu’ and ‘Charu’ by 30 metres and 60 metres, respectively. If ‘Bhanu’ and ‘Charu’ ran a 180 metre ...
A, a female, introduces B saying that, "She is the wife of the grandson of the father of my father". How is B related to A?
If the consonants of the following words are arranged first, followed by the vowels as per the English alphabetical order and then the consonants are ch...
What should come in place of the question mark (?) in the following series based on the above arrangement?
Z A 9 4 Δ ...
Which of the following file extension denotes Excel Spreadsheet?
What do you call the memory that stores recently-used information in a place where it can be accessed extremely fast?
Relevant for Exams:
