In bod test using 5% dilution of the sample (15ml of sample and 285 ml of dilution water)do values for the sample and dilution water blank bottles after 5days incubation at 20degree celcius were 3.80 and 8.80mg/l respectively. Do originally present in the undiluted sample was 0.8mg/l .the 5day 20degree celcious bod of sample is -
Three friends, P, Q and R started a partnership business investing money in the ratio of 5 : 4 : 2 respectively for a period of 3 years. What is the amount received by P as his share profit?
Total amount invested in the business in Rs. 22,000.
Profit earned at the end of 3 years is of the total investment.
The average amount of profit earned per year is Rs. 2750.
A. I or II or III
B. Either III only, or I and II together
C. Any two of the three
D. All I, II and III are required.
E. None of these
A site has 6 contour lines and length of the line joining the midpoints of the highest contour and lowest contour is 300 m. If the slope of the line is 1 in 10, then the contour interval (in m) is
(A) 5 (B) 6 (C) 50 (D) 60
A neighborhood with a total of 200 hectares has a gross density of 300 persons per hectare (pph). If the residential area is 60% of the total area, then net density in (pph) of the neighborhood is
(A) 300 (B) 450 (C) 500 (D) 750
A function with don’t care condition is as follows
f (a, b, c, d) m(0, 2, 3, 5, 7, 8, 9, 10, 11) dc(4, 15)
The minimized expression for this function is
(A) ab bd cd abc (B) ab bd cd abd
(C) ab bd bc abd (D) Above all