Question
Virat can do a piece of work in 28 days and Sachin can
do the same work in 42 days. If Virat works for 4 days and got Rs. 1800, and the remaining work will completed by Sachin, then how much rupee Sachin earned?Solution
Assume total work = LCM (28, 42) = 84 If the entire work is 84 units, Virat can complete 3 unit per day, and Sachin can complete 2 unit per days In 4 days, Virat completes 12 units and got Rs.1800 i.e. Rs.150 per unit. Remaining work = (84 – 12)unit = 72 unit ∴ Sachin earning = Rs.72 × 150 = Rs. 10800
Itai-Itai disease is caused by exposure to which metal?
Amalgam is a mixture of
Identify the element with the electronic configuration of 2, 8, 7.
Identify the acid commonly used for glass etching.
The Nuclear Fusion on the Sun’s surface result into formation of Atoms.
What two acids are mixed to prepare Aqua Regia, used by goldsmiths?
Who is known as father of Green Revolution in India?
Which drug is used to cure Hypertension?
What process is used to create a protective oxide layer on aluminum?
Which of the following elements is not a component of stainless steel?
Relevant for Exams:
