She bought 10 watermelons costing 900 rupees and 7 melons costing 490 rupees Write down the difference between the cost of melon and watermelon with a numeric expression. I will mark you brainleist but you have to write the correct answer and fastly

She bought 10 watermelons costing 900 rupees and 7 melons costing 490

1.	She bought 10 watermelons costing 900 rupees and 7 melons costing 490 rupees Write down the difference between the cost of melon and watermelon with a numeric expression. I will mark you brainleist but you have to write the correct answer and fastly
Answer» 10 watermelons=Rs900Cost of 1 watermelons=Rs900/10=Rs90Cost of 7 melons=Rs490Cost of 1 melon=Rs 490/7=Rs 70Difference between cost of WATERMELON and melon = Rs90- Rs70=Rs20