Category: MC4: Decimals, Fraction, Percentage

[Math Center] Questions 1 to 3 are based on the following data. 1. If the dollar amount of sales at Store [latex]P[latex] was $[latex]800,000[latex] for [latex]2006[latex], what was the dollar amount of sales at that store for [latex]2008[latex] ? (A) $[latex]727,200[latex] (B) $[latex]792,000[latex] (C) $[latex]800,000[latex] (D) $[latex]880,000[latex] (E) $[latex]968,000[latex]   2.  At Store [latex]T[latex], the […]

[Math Center] 1. By weight, liquid [latex]A[latex] makes up [latex]8[latex] percent of solution [latex]R[latex] and [latex]18[latex] percent of solution [latex]S[latex]. If [latex]3[latex] grams of solution [latex]R[latex] are mixed with [latex]7[latex] grams of solution [latex]S[latex], then liquid [latex]A[latex] accounts for what percent of the weight of the resulting solution?  (A) [latex]10[latex]% (B) [latex]13[latex]% (C) [latex]15[latex]% […]

[Math Center] 1. If $[latex]10,000[latex] is invested at a simple annual interest rate of [latex]6[latex] percent, what is the value of the investment after half a year?   2. To produce a particular radio model, it costs a manufacturer $[latex]30[latex] per radio, and it is assumed that if [latex]500[latex] radios are produced, all of them […]

[Math Center] 1.  A car got [latex]33[latex] miles per gallon using gasoline that cost $[latex]2.95[latex] per gallon. Approximately what was the cost, in dollars, of the gasoline used in driving the car [latex]350[latex] miles? (A) $[latex]10[latex] (B) $[latex]20[latex] (C) $[latex]30[latex] (D) $[latex]40[latex] (E) $[latex]50[latex]   2. Working alone at its constant rate, machine A produces […]

[Math Center] [latexpage] 1.  Rectangle [latex]R[latex] has length [latex]30[latex] and width [latex]10[latex], and square [latex]S[latex] has length [latex]5[latex]. The perimeter of [latex]S[latex] is what fraction of the perimeter of [latex]R[latex] ?   2. If [latex]\frac{ d-3n }{ 7n-d }[latex] which of the following statements describes [latex]d[latex] in terms of [latex]n[latex]?  (A) [latex]d[latex] is [latex]4[latex] […]

[Math Center Home] [নোটঃ এই আর্টিকেলটি (4) Decimals, Fraction, Percentage বিভাগের অধীনে 〈1〉Ratio, Proportion, Percent চ্যাপ্টারের অন্তর্গত, যা 〈4.1.a〉চিহ্ন দিয়ে প্রকাশ করা হয়েছে] 〈4.1.a〉 অনুপাত, সমানুপাত এবং শতকরা বিষয়ক আলোচনা Ratios বা অনুপাতঃ A ratio expresses a particular relationship between two or more quantities. Here are some examples of ratios: The two partners spend time working in the ratio […]

[Math Center Home] [নোটঃ এই আর্টিকেলটি (4) Decimals, Fraction, Percentage বিভাগের অধীনে 〈4〉Profit loss চ্যাপ্টারের অন্তর্গত, যা 〈4.4.a〉চিহ্ন দিয়ে প্রকাশ করা হয়েছে] 〈4.4.a〉লাভ ও ক্ষতি সম্পর্কিত আলোচনা Selling price with profit included: If buying price is [latex]B[latex] and you want to make [latex]P[latex]% profit, then selling price [latex]S[latex] would be: [latex]S=B+(P[latex]% of [latex]B)=B+BP/100=B(100+P/100)[latex] For loss, the “plus sign” will […]

[Math Center Home] [নোটঃ এই আর্টিকেলটি (4) Decimals, Fraction, Percentage বিভাগের অধীনে 〈2〉Fractions চ্যাপ্টারের অন্তর্গত, যা 〈4.2.a〉চিহ্ন দিয়ে প্রকাশ করা হয়েছে] 〈4.2.a〉ভগ্নাংশ (হর-লব নিয়ম, যোগ, বিয়োগ, গুন ও ভাগ পদ্ধতি) Decimals are one way of expressing the numbers that fall in between the integers. Another way of expressing these numbers is fractions. For example, the fraction [latex]9/2[latex] which equals […]

[Math Center Home] [নোটঃ এই আর্টিকেলটি (4) Decimals, Fraction, Percentage বিভাগের অধীনে 〈5〉Mixture and Coin Problems চ্যাপ্টারের অন্তর্গত, যা 〈4.5.a〉চিহ্ন দিয়ে প্রকাশ করা হয়েছে] 〈4.5.a〉বিভিন্ন ধরণের মিশ্রণ এবং মুদ্রা সম্পর্কিত সমস্যা Chemical Mixtures A [latex]500[latex] mL solution is [latex]20[latex]% alcohol by volume. If [latex]100[latex] mL of water is added, what is the new concentration of alcohol, as a percent […]

[Math Center Home] [নোটঃ এই আর্টিকেলটি (4) Decimals, Fraction, Percentage বিভাগের অধীনে 〈3〉Rates(Work, Speed, Conduits) চ্যাপ্টারের অন্তর্গত, যা 〈4.3.a〉চিহ্ন দিয়ে প্রকাশ করা হয়েছে] 〈4.3.a〉কাজ ও গতির হার বিষয়ক আলোচনা (Rates & work strategy) : বিভিন্ন পরীক্ষায় এ ধরণের প্রশ্ন #এরিথমেটিক অংশে প্রায়ইঃ দেখা যায়। এ ধরণের অঙ্কে সাধারণতঃ নিচের টার্মগুলো উলে­খ থাকে। RATE, TIME, & DISTANCE or WORK. এই […]