5. 4.A, B and C enter into a partnership in the
ratio 7/3 : 4/3 : 6/5. After 4 months, A
increases his share 50%. If the total profit at the
end of one year be Rs. 21,600, then B's
share in the profit is:
Answer=4000
8. 7.What number should be subtracted
from x3+5x2−7x+12, if it is to be perfectly
divisible by x+3?
Answer=51
9. 8. What is the remainder when 57 is divided
by 8?
Answer=5
10. 9.The sequences X1, X2..... and Y1,Y2.... are in
arithmetic progressions such that X1+ Y1=90 and
X22− X21= Y99− Y100 . Find the sum of the first 80
terms of the progression, (X1+ Y1),(X2+ Y2).....
Answer=7200