In triangle ABC, angles B and C are equal to 80. D and E are points on AB and AC such that angle DCB is 60 and angle EBC is 70. Lines CD and BE intersect at F. Find angle DEF.
which follows
http://imgur.com/gallery/Xlhe7iE/new
Any good video on concepts of. Releative velocity
A box contains 10 red balls and 15 blue balls. One ball from the box is lost. Two balls are then drawn from the box and are found to be red ones. Find the probability that the ball lost is blue.
A)15/23
B)3/5
C)8/23
D)None of these
When twice the original number is divided by the same divisor, the remainder is 11. What is the value of the divisor?
A. 13
B. 59
C. 35
D. 37
Let m and n be the roots of the quadratic equation x2 + (α− 3)x − 4α − 3 = 0. What is the minimum possible value of m2 + n2?
a)6 b)8 c)12 d)14
Im getting it as 30...explain soln puys
Of all the natural numbers below 100,how many have exactly 4 divisors..
29. The length of a rectangular plot is 60% more than its breadth. If the difference between the length and the breadth of that rectangle is 24 cm, what is the area of the rectangle?
30.How many square pieces of 5 cm side can be cut off a rectangular tin plate 15 cm long and 10 cm wide?
207 students appeared in an examination out of 276 registered students. Find out the ratio between registered to the appeared students.
Question No. 30
3 friends play a game, rules are as follows whenever there is a contest between any 2 of them, the one who has a higher % alcohol should pour 200ml of his wine into the one having lower % alcohol. The game starts as a contest between A and B, then B and C and then C and A. Post this, the game continues in the same cycle on and on. If a player has emptied all his alcohol, then the remaining two play the game with same rules. If 2 players have alcohol of same percentage level, the younger one pours 200 ml of his alcohol into the elder one’s glass. All 3 of them start the game with 600 ml of wine. A’s mine has 60% alcohol, B’s has 48% alcohol, C’s has 50% alcohol. They take 3 minutes to play one round of this game. D, a fourth friend leaves the pub immediately after the game begins, returns after an hour and drinks wine from the person who has the highest alcohol percentage. What is the concentration of alcohol that D had
?
- 53%
- Can’t be determined
- 58.4%
- 52.65%
- 51.5%
0 voters
Q.
Find the minimum length of the string wound on a cylinder of height 48 cm and the base diameter of cm.The string makes exactly four complete turns round the cylinder while its two ends touch the cylinder's top and bottom.
In a parallelogram, the sides are 13 & 11 cms. Length of a diagonal = 16 cm. Find the other diagonal.
find the no of whole no solutions for x+y+z= 48 such that x is less than y is less than z?
pls explain the approach..
x toffees are distributed among y children. x greater than y. What is the number of values that x can assume such that 2 less than x+y less than 110.? y greater than 1.
Given F(n-1) = 1/(2-F(n)); how can we rewrite this expression as F(n) = (2F(n-1)-1)/(F(n-1))... Plz repl
Find the remainder: 3^100 + 3^200 + 3^300 +..... + 3^10,000 is divided by 26.
Sum of two no.s = 4732, HCF = 13. Find no. of all such pairs? NOT ORDERED PAIRS.
Find the last non zero digit of 2000!
Puys please tell the approach
A man cheats while buying as well as while selling. While buying he takes 10% more than what he pays for and while selling he gives 20% less than what he claims to. Find his profit percent, if he sells at 9.09% below the cost price of the claimed weight.
Kindly explain the approach too.
A contains 100 lit of pure millk and B contains 200 lit of pure water...40 lit from A is mixed in B and then from resulting solution in B 40 lit is mixed in A....this process is repeated indefinitely...what is final percentage of milk in A?