Radhika bought a dozen pens at the rate of Rs 5.00 per pen. She sold 6 of them for Rs 7.5) each and the rest for Rs 6.75 each. What was the profit or loss?

What percent of the circle below is shaded?

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?

Yahir designs bracelets. he uses between 9 and 15 red and yellow beads in the ratio of 2 red bead to 5 yellow beads. drag the beads into the container to meet these requirements