Question
Two pipes 'P' and 'Q' together can fill a tank in 16
minutes while 'Q' alone can fill the tank in 24 minutes. How much time does pipe 'P' alone need to fill the tank?Solution
Let the total capacity of the tank be 48 litres. {LCM (16 and 24)} So, the efficiency of pipe 'Q' = 48 ÷ 24 = 2 litres/minute Combined efficiency of pipe 'P' and 'Q' = 48 ÷ 16 = 3 litres/minute So, the efficiency of 'P' = 3 - 2 = 1 litre/minute So, the required time = 48 ÷ 1 = 48 minutes
The recent study emphasized (1) the need to address climate change through sustainable (2) farming practices and encouraged farmers to adopt innovative...
- In each sentence below four words have been printed in bold which are numbered (1), (2), (3) and (4) One of these words may be misspelt or inappropriate in...
In each group, one word is correctly spelt. Find the correct word.
Select the wrongly spelt word.
Choose the word with the incorrect spelling.Â
- In each sentence below four words have been printed in bold which are numbered (1), (2), (3) and (4) One of these words may be misspelt or inappropriate in...
Select the appropriate answer.
- In each sentence below four words have been printed in bold which are labeled as (A), (B), (C) and (D) One of these words may be misspelt or inappropriate ...
1) Decietful
2) Desolate
3) Ingridient
4) Poisonus
The research highlights the importance of sustainble agricultural practices in combating climate change and ensuring food security for future generatio...
Relevant for Exams:
