23. In a bag there are 5 and 2 rupee coins. If they are equal in number and their worth is ₹70, then
(a) The worth of x coins of ₹5 each ________.
(b) The worth of x coins of ₹2 each ________.
(c) The equation formed is ________.
(d) There are ________ 5 rupee coins and ________ 2 rupee coins.
(a) ₹5x
(b) ₹2x
(c) 5x + 2x = 70
(d) 10, 10
Total = 5x + 2x = 70 ⇒ x = 10. So, 10 coins of each type.