When a natural number 'n' is divided by 4, the remainder is 3. What will be the remainder when (2n + 3) is divided by 4?
Average age of P and Q is 24 years. Average age of P, Q and R is 22 years. Find the sum of their ages in last year.
The average age of 4 persons is 42 years. If their ages are in the ratio of 1: 3: 4: 6 respectively, find out the difference between the ages of the eldest and the youngest person.
If the first number and the second number is 25% and 50% more than the third number respectively, find the respective ratio between the first and the second number.
In a party, one-fifth of the guests wanted cool drinks only. Out of the remaining, half of them liked coffee and two-thirds like tea. If 12 of the guests opted for both coffee and tea, how many guests had attended the party?
Four vessels of equal size are filled with mixtures of milk and water. The strength of milk in the four vessels are 80%, 75%, 60% and 50% respectively. If all four mixtures are mixed together then what is the ratio of milk to water in the resultant mixture?
The sum of three numbers is 100. The ratio of the first number to the second number is 4: 9 and the ratio of the second to the third number is 3: 4. Find the second number.
After spending 1/4th of pocket money on chocolates and 1/8th of pizza, a girl is left with Rs. 40. How much money did she have at first?
The ratio of ages of A, B and C is 2: 4: 5 and sum of their ages is 77. Find the ratio of A's age to B's age ten years hence.
The arithmetic mean and geometric mean of two numbers are 7 and 2√10 respectively, then find the numbers.
Two numbers are such that the square of one is 224 less than 8 times the square of the other. If the numbers are in the ratio of 3: 4, find the numbers.
In a bag, there are coins of 25 paise, 10 paise and 5 paise in the ratio of 1: 2: 3. If there are Rs.30 in all, how many 5 paise coins are there?
A can complete a certain work in 35 days and B can complete the same work in 15 days. They worked together for 7 days, then B left the work. In how many days will B alone complete 20% of the remaining work?
A can finish 80% of a task in 12 days and B can finish 20% of the same task in 2 days. They started the task together, but B left after 2 days and A continued to work. In how many days was the entire task completed?
A can do % of a work in 10 days and B can do % of the same work in 8 days. Both together worked for 8 days then C alone completes the remaining work in 3 days. A and C together will complete part of the original work in:
A can complete a certain work in 35 days and B can complete the same work in 15 days. They worked together for 7 days, then B left the work. In how many days will A alone complete 60% of the remaining work?
A can do 1/3 of a work in 30 days. B can do 2/5 of the same work in 24 days. They worked together for 20 days. C completed the remaining work in 8 days. Working together A, B and C will complete the same work in:
A can complete % of a work in 5 days and B can complete 40% of the same work in 10 days. They work together for 5 days and then B left the work. A alone will complete the remaining work in:
A and B can do a work together in 18 days. A is three times as efficient as B. In how many days can B alone complete the work?
A can do a certain job in 12 days. B is 60% more efficient than A. To do the same job B alone would take?
A is twice as good as a workman as B. And together, they finish a piece of work in 20 days. In how many days, will A alone finish the work?
Rama and Hari can together finish a piece of work in 15 day. Rama works twice as fast as Hari, then Hari alone can finish work in :
A and B working together can complete a job in 30 days. The ratio of their efficiencies is 3 : 2. In how many days can the faster person complete the job?
P and Q together can complete a work in 20 days. If P alone can complete the same work in 36 days, then in how many days Q alone can complete the same work?
If C alone can complete two-third part of a work in 12 days, then in how many days C can complete the whole work?
If Rohit alone can complete one-fourth of a work in 32 days, then in how many days Rohit alone can complete the whole work?
C alone can complete a work in 20 days and D alone can complete the same work in 30 days. In how many days C and D together can complete the same work?
A alone can complete a work in 6 days and B alone can complete the same work in 8 days. In how many days both A and B together can complete the same work?
The average monthly income of the father and mother is Rs. 5,000. The average monthly income of the mother and her son is Rs. 6,000. The average monthly income of the father and his son is Rs. 10,000. Find the monthly income (in Rs.) of the father.
College P has 180 students scoring average marks of 88 and college Q has 320 students scoring average marks of 72. Find the average marks of both the colleges together.
20 students of a college went to a hotel. 19 of them spent Rs. 175 each on their meal and the 20th student spent Rs. 19 more than the average of all the 20. Find the total money spent by them.
In a match, average of runs scored by 7 players is 63. If the runs scored by 6 players are 130, 42, 24, 53, 45 and 54, then how many runs did the 7th player scored?
Average of 8 numbers is 44. The average of first three numbers is 50 and the average of next two numbers is 52. If the sixth number is 6 and 8 less than seventh and eighth number respectively, then what is the value of eighth number?
840 പേർ ഉള്ള ഒരു പട്ടണത്തിൽ 450 പേർ ഹിന്ദി പത്രവും , 300 പേർ ഇംഗ്ലീഷ് പത്രവും 200 പേർ രണ്ടും വായിക്കുന്നു .അപ്പോൾ രണ്ടും വായിക്കാത്തവരുടെ എണ്ണം ?
ഒരു ക്ലാസ്സിൽ 1 മുതൽ 140 വരെ റോൾ നമ്പർ ഉള്ള വിദ്യാർത്ഥികളിൽ എല്ലാ ഇരട്ട സംഖ്യ റോൾ നമ്പർ ഉള്ള വിദ്യാർഥികളും ഗണിത ശാസ്ത്ര കോഴ്സ് തിരഞ്ഞെടുത്തു, അവരുടെ റോൾ നമ്പർ 3 കൊണ്ട് ഹരിക്കാൻ കഴിയുന്നവർ ഫിസിക്സ് കോഴ്സും, അവരുടെ റോൾ നമ്പർ 5 കൊണ്ട് ഹരിക്കാൻ കഴിയുന്നവർ കെമിസ്ട്രി കോഴ്സും തിരഞ്ഞെടുത്തു. എങ്കിൽ ഒരു കോഴ്സും തിരഞ്ഞെടുക്കാത്തവരുടെ എണ്ണം എത്ര ?