Answer:
4 pens
Step-by-step explanation:
Let x represent the number of pens bought by Raju and y represent the number of pencils bought by Raju.
Given that Raju bought two times as many pens as pencils, this statement can be represented by:
x = 2y (1)
A pen costs Rs 12 and a pencil Rs 2, and he spent a total of Rs. 52, hence:
12x + 2y = 52 (2)
Substituting x = 2y in equation (2):
12(2y) + 2y = 52
24y + 2y = 52
26x = 52
y = 52/26
y = 2
From equation (1), x = 2y, hence:
x = 2(2)
x = 4
x = 4
Therefore he bought 4 pens and 2 pencils
