A heap of stones can be made up into groups of 21. When made up into groups 16, 20, 25 and 45 there are three stones left in each case. How many stones at least can there be in the heap?
(a)7203
(b)2403
(c)3603
(d)4803
A heap of stones can be made up into groups of 21. When made up into groups 16, 20, 25 and 45 there are three stones left in each case. How many stones at least can there be in the heap?
(a)7203
(b)2403
(c)3603
(d)4803










