@ScareCrow28 said:smjh ni aya..what are the options??
@hedonistajay said:consider f(x) =9^x/(9^x + 3) what is value of f(1/401) + f(2/401) + f(3/401).... f(400/401)..?
@hedonistajay said:In a recent election for class president, Monika received 7 of the 10 votes and Alfred received 3 of the 10 votes that were cast by the class. When the machine was counting the votes, it malfunctioned and instead of giving the vote to the correct person, it gave the vote to each candidate with probability 1/2 (regardless of whom the vote was cast for). The probability that the machine gave each student the correct number of votes in the election can be expressed as a/b where a and b are positive, coprime integers. What is the value of a+b ?
@vijay_chandola said:probability=C(10, 7) *(1/2)^7*(1/2)^3=120/2^10=15/2^7=15/128So, a+b=15+128=143
@ankita14 said:Mujhe laga sirf mera hi aisa answer aaya hoga
apna bhi yehi aa rha hai..@sujamait said:apna bhi yehi aa rha hai..Lionel and Ronaldo had a discussion on the agesof Jose's sons. Ronaldo made followingstatements about Jose's sons:i. Jose has three sons.ii. The sum of the ages of Jose's sons is 13.iii. The product of the ages of the sons is thesame as the age of Lionel.iv. Jose's eldest son, Zizou weighs 32 kilos.v. The sum of the ages of the younger sons ofJose is 4.vi. Jose has fathered a twin.vii. Jose is not the father of a triplet.viii. The LCM of the ages of Jose's sons is morethan the sum of their ages.Which of the following combination givesinformation sufficient to determine the ages ofJose's sons? (1 mark)(1) i, ii, iii and iv (2) i, ii, iv and vi(3) i, ii, iii and v (4) i, ii, v and vii(5) i, ii, v and vi@chillfactor kuch Q hai aaj ke liye ?
@bullseyes said:Data Sufficency question.S and T are two water pumps that run at constant rates. If pump T pumped alone, how many more hours would it take for it to finish pumping a large container than it would take for pump S to accomplish the same task by itself?(1) When both the water pumps work together, they finish pumping a large container in 23 rd the time it takes for pump S to finish the task alone.(2) Pump T is capable of pumping a large container in twice the time that it takes pump S to accomplish the same task alone a) using 1 alone b) using 2 alonec) using bothd) using eithere) cannot be answered using both
hey . i have a few doubts in geometry and i don't know how to upload the question so if you do have whatsapp please inbox me your number and share the questions via whatsapp . thanks a lot .
@meenu05 said:hey . i have a few doubts in geometry and i don't know how to upload the question so if you do have whatsapp please inbox me your number and share the questions via whatsapp . thanks a lot .
@meenu05 said:hey . i have a few doubts in geometry and i don't know how to upload the question so if you do have whatsapp please inbox me your number and share the questions via whatsapp . thanks a lot .
@bullseyes said:Data Sufficency question.S and T are two water pumps that run at constant rates. If pump T pumped alone, how many more hours would it take for it to finish pumping a large container than it would take for pump S to accomplish the same task by itself?(1) When both the water pumps work together, they finish pumping a large container in 23 rd the time it takes for pump S to finish the task alone.(2) Pump T is capable of pumping a large container in twice the time that it takes pump S to accomplish the same task alone a) using 1 alone b) using 2 alonec) using bothd) using eithere) cannot be answered using both
@sujamait said:apna bhi yehi aa rha hai..Lionel and Ronaldo had a discussion on the agesof Jose's sons. Ronaldo made followingstatements about Jose's sons:i. Jose has three sons.ii. The sum of the ages of Jose's sons is 13.iii. The product of the ages of the sons is thesame as the age of Lionel.iv. Jose's eldest son, Zizou weighs 32 kilos.v. The sum of the ages of the younger sons ofJose is 4.vi. Jose has fathered a twin.vii. Jose is not the father of a triplet.viii. The LCM of the ages of Jose's sons is morethan the sum of their ages.Which of the following combination givesinformation sufficient to determine the ages ofJose's sons? (1 mark)(1) i, ii, iii and iv (2) i, ii, iv and vi(3) i, ii, iii and v (4) i, ii, v and vii(5) i, ii, v and vi@chillfactor kuch Q hai aaj ke liye ?
The triangle Abc is right angled at F . EF is perpendicular to CA . Find the angle AEC if angle ADB = 55 degrees .
@meenu05 said:The triangle Abc is right angled at F . EF is perpendicular to CA . Find the angle AEC if angle ADB = 55 degrees .
Need help with this one:
@veertamizhan said:Need help with this one:"How much time will an express train of length 150 meters and running at a speed of kmph take to cross a man walking at 5 m/s inside a passenger train of length 200 meters and running at 15 kmph in a direction opposite to that of the express train. The man is walking inside the train and in opposite direction of that train (assuming the man does not reach the end of his train meanwhile)"
@veertamizhan said:Need help with this one:"How much time will an express train of length 150 meters and running at a speed of kmph take to cross a man walking at 5 m/s inside a passenger train of length 200 meters and running at 15 kmph in a direction opposite to that of the express train. The man is walking inside the train and in opposite direction of that train (assuming the man does not reach the end of his train meanwhile)"
@veertamizhan said:Need help with this one:"How much time will an express train of length 150 meters and running at a speed of 75 kmph take to cross a man walking at 5 m/s inside a passenger train of length 200 meters and running at 15 kmph in a direction opposite to that of the express train. The man is walking inside the train and in opposite direction of that train (assuming the man does not reach the end of his train meanwhile)"