Question

Can u help me with no 38

Answer 1

40*3 = 120
120+40 = 160

Yes you are correct! because the answer is $160

Hope this helps! :)

Answer 2

Determine single-digit values of M for which the products M*5 end in 5.  They are M={1,3,5,7, ...}.  Note, for example, that 7*M5 ends in 5, the last digit of 385.  Even values of M (as in {2,4,6,8,...} do not have products that end in 5, and thus must be eliminated.

Next, note that if N=5, then M*5 becomes 75, and that 75 multiplied by 5 comes out to 385, which is the desired product.  

Noting that L times N*5 (that is, L times 55) = 385, L has to be the same as M, and is in fact 7.  Then L times N*5 comes out to 385.

In summary:  N=5, M=7 and L=7.