Question
The ages of A, B and C are in the ratio 4:5:7 and the
sum of their ages is 80. Find the ratio of 15 years ago B’s age to C’s age after 10 years.Solution
Let the present age of A, B and C be 4x, 5x and 7x respectively. According to the question, => A + B + C = 80 => 4x + 5x + 7x = 80 => x = 5 B’s age 15 years ago = 5x – 15 = 25 – 15 = 10 C’s age after 10 years = 7x + 10 = 35 + 10 = 45 Required ratio = 10 : 45 = 2:9
The process of preserving organelles, cells and tissues at -196 °C in liquid nitrogen is called:
What is the maximum deposit limit under the Senior Citizen Savings Scheme (SCSS)?
What is the National Mission for Hydrogen (NMH) targeted towards?
What is the full form of DFC?
An imaginary line passing through the center of the spherical mirror or the center of the lens or the center of curvature is called ______________.
Which of these planets is known as the Yellow Planet?
 The Special drawing rights is an international reserve asset, it is created and maintained by which of these?
Who initiated the establishment of the high-powered Task Force on Supportive Policy and Regulatory Framework for Microfinance in November 1998?
Which of the following village is declared to be India’s first 24*7 solar powered village?
Who is the author of the book “ Indira Gandhi – A life in nature”?