Question

A, B-এর তিনগুণ কর্মক্ষম| A ও B একত্রে যে কাজ3 দিনে করে সেই কাজ এ একা কত দিনে করবে?​

Answer 1

Answer:

A, B-এর তিনগুণ কর্মক্ষম| A ও B একত্রে যে কাজ3 দিনে করে সেই কাজ এ একা কত দিনে করবে?

Answer 2

• The techniques and methods we use to solve quantitative aptitude problems will vary from problem to problem.
• The techniques and methods we use to solve specific problems in a particular topic of Quantitative Aptitude will not work for a different problem found in another topic.
• For example, the methods we use to solve word problems in equations will not work for word problems in mensuration.
• Because in equations we solve most of the problems without any diagram. But in measurement, for each word problem, we have to draw a diagram. Without a diagram, it is always difficult to solve word problems in measurement.

Given:

• A is three times as efficient as B
• A and B did work together for 3 days

To find: In how many days will A alone do the work?

Solution:

Let the efficiency of B be x so the efficiency of A will be 3x

Now since A and B can do work together in 3 days which means,

A+B=3

Now put B as x and A as 3x

$3x+x=3\\4x=3\\x=3/4$

Now the efficiency of A is 3x hence $3x=3*3/4=9/4=2.25$

Hence A will complete work in 2.25days

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