1, solution: 3 pencils +8 ballpoint pens = 1 1.9 yuan, 2 1 pencils and 56 ballpoint pens is 1 1.9×7=83.3 yuan.

7 pencils +6 ballpoint pens+1 1.3 yuan, 2 1 pencils and 18 ballpoint pens is1.3× 3 = 33.9 yuan.

56- 18=38 ballpoint pen is 83.3-33.9=49.4 yuan, 1 ballpoint pen is 49.4÷38= 1.3 yuan.

1 pencil: (11.9-8×1.3) ÷ 3 = 0.5 yuan.

So pencil 0.5 yuan, ballpoint pen 1.3 yuan. 2. Solution: 1 is one of them. 964- 1=963.

964 is an even number, so it must be a multiple of 2, which means that the even number of 1-964 can be divisible by 964. * * * Even number 482 (including 964/964). 963-482=48 1.

Then find an odd number divisible by 964. Use 964÷2=482 482÷2=24 1, and 24 1 is this odd number. 48 1- 1=480.

Find an odd number that can divide 48 1, and we can know that there is 13,37, so it is 13×37=48 1, and13 and 37 are prime numbers, so no positive integer can divide 964. 480-2=478.

So there are 478.