Q.141- The average weight of 3 men, A, B and C is 84 kg. Another man D joins the group and the average now becomes 80 kg. If another man E whose weight is 3 kg more than that of D, replaces A then the average weight of B, C, D and E becomes 79 kg. What is the weight of A ?A. 70 kgB. 72 kgC. 75 kgD. 80 kg Q.142- If the average of x and $$\frac{1}{x}$$ (x ≠ 0) is M, then the average of x2 and $$\frac{1}{x^{2}}$$ is :A. $$1-M^{2}$$B. $$1-2 M^{2}$$C. $$2 \mathrm{M}^{2}-1$$D. $$2 \mathrm{M}^{2}+1$$ Q.143- The mean high temperature of the first four days of a week is 25°C whereas the mean of the last four days is 25.5°C. If the mean of the whole week is 25.2°C then the temperature of the 4th day is :A. 25°CB. 25.2°CC. 25.6°CD. 25.5°C Q.144- Mukesh has twice as much money as Soham. Soham has 50% more money than Pankaj. If the average money with them is Rs. 110, then Mukesh has :A. Rs. 155B. Rs. 160C. Rs. 180D. Rs. 175 Q.145- Out of four numbers the average of the first three is 16 and that of the last three is 15. If the last number is 20, than first number is :A. 25B. 21C. 23D. 28 Time is Up! Leave a comment Cancel replyCommentEnter your name or username to comment Enter your email address to comment Enter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.