समूह 'घ' (Group 'D')
[4x5= 200
21. यदि कुनै वस्तुको अङ्कित मूल्यमा 15% छुट दिइयो भने 20%
नाफा हुन्छ । यदि 25% छुट दिँदा रु. 120 नाफा हुन्छ भने
वस्तुको क्र. मू. पत्ता लगाउनुहोस् ।
If an article is sold at 15% discount on its market
price, the profit is 20%. If the discount of 25% i
allowed, the profit is Rs 120, then find the cost prici
of an article.
Ans: Rs2040

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?

Aline is perpendicular to another line m2= (-1/m1), where m1 is the slope of the original line and m2 is the slope of the perpendicular line. which of the following equations represents the line that passes through the point (-2,1) and is perpendicular to the line below?